CVE-2026-55653
Full vulnerability record from the local CVENow database.
Description
A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. Successful exploitation leads to client-side process termination, resulting in a Denial of Service (DoS).
Severity
MEDIUM
CVSS score
6.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-06-23 04:17:36.600000
Last modified
2026-10-30 08:16:57.497000
View original CVE JSON
{
"id": "CVE-2026-55653",
"sourceIdentifier": "[email protected]",
"published": "2026-06-23T04:17:36.600",
"lastModified": "2026-10-30T08:16:57.497",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange (DH-GEX) client path. This occurs during FIPS (Federal Information Processing Standards) mode known-group validation when the client processes attacker-controlled DH-GEX group parameters. Successful exploitation leads to client-side process termination, resulting in a Denial of Service (DoS)."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"versions": [
{
"version": "0:9.9p1-25.el10_2",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"versions": [
{
"version": "0:9.9p1-7.el10_0.5",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"versions": [
{
"version": "0:8.0p1-30.el8_10",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"versions": [
{
"version": "0:8.0p1-30.el8_10",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"versions": [
{
"version": "0:9.9p1-9.el9_8",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"versions": [
{
"version": "0:9.9p1-9.el9_8",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::appstream",
"cpe:/o:redhat:rhel_e4s:9.2::baseos"
],
"versions": [
{
"version": "0:8.7p1-30.el9_2.13",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream",
"cpe:/o:redhat:rhel_e4s:9.4::baseos"
],
"versions": [
{
"version": "0:8.7p1-38.el9_4.10",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream",
"cpe:/o:redhat:rhel_eus:9.6::baseos"
],
"versions": [
{
"version": "0:8.7p1-45.el9_6.5",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Hardened Images",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "openssh-main",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"versions": [
{
"version": "10.3p1-6.hum1",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.0",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.0::el9"
],
"versions": [
{
"version": "1791818590",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.0",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.0::el9"
],
"versions": [
{
"version": "1791818589",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.0",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-spyre-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.0::el9"
],
"versions": [
{
"version": "1791818505",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.0",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-tpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.0::el9"
],
"versions": [
{
"version": "1791818496",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.0",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.0::el9"
],
"versions": [
{
"version": "1791818502",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.0",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.0::el9"
],
"versions": [
{
"version": "1793042072",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.2",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-spyre-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.2::el9"
],
"versions": [
{
"version": "1791818602",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.2",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.2::el9"
],
"versions": [
{
"version": "1791818598",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.2",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-tpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.2::el9"
],
"versions": [
{
"version": "1791818512",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.2",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.2::el9"
],
"versions": [
{
"version": "1791818587",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.2",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.2::el9"
],
"versions": [
{
"version": "1791818778",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.2",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.2::el9"
],
"versions": [
{
"version": "1791818512",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-tpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818782",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-6.4-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818782",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-12.9-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818627",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-7.0-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818790",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818874",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-neuron-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818792",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-13.0-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818662",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-spyre-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1791818877",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-neuron-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791883722",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-12.9-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791881612",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791885618",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-6.4-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791881487",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-spyre-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791881732",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-7.1-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791883315",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-gaudi-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791881486",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-tpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791881769",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-13.0-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791885505",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-spyre-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791819252",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-gaudi-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791818749",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791819206",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-neuron-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791818979",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rocm-7.14-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791819123",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-tpu-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791818901",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-rubin-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791820333",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-13.0-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791819495",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhai/base-image-cuda-12.9-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1791819104",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Update Infrastructure 5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhui5/installer-rhel9",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"versions": [
{
"version": "1786435483",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Update Infrastructure 5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhui5/rhua-rhel9",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"versions": [
{
"version": "1786533529",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Update Infrastructure 5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhui5/installer-tp-rhel9",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"versions": [
{
"version": "1787135742",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Update Infrastructure 5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhui5/rhua-tp-rhel9",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"versions": [
{
"version": "1787241260",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openssh",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift/ose-rhel-coreos-8",
"cpes": [
"cpe:/a:redhat:openshift:4"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift/ose-rhel-coreos-9",
"cpes": [
"cpe:/a:redhat:openshift:4"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 5",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift/ose-rhel-coreos-9",
"cpes": [
"cpe:/a:redhat:openshift:5"
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-23T14:30:51.025049Z",
"id": "CVE-2026-55653",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-415"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:openbsd:openssh:-:*:*:*:*:*:*:*",
"matchCriteriaId": "7BB9B2AD-A04E-4C93-9FAF-5DC02F69690B"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*",
"matchCriteriaId": "87DEB507-5B64-47D7-9A50-3B87FD1E571F"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*",
"matchCriteriaId": "932D137F-528B-4526-9A89-CD59FA1AB0FE"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
"matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
"matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C"
}
]
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:36759",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:47755",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:47756",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:47757",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:54387",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:58981",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:76748",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:76993",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:80513",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82749",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82750",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82751",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82752",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82753",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82754",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82755",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82756",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82757",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82758",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82759",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82761",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82762",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82763",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82897",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82898",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82899",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82900",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82901",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82902",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82903",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82904",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82907",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82908",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82909",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82910",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82912",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82913",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82914",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82915",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82916",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82917",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82918",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82920",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82921",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82922",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82923",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:89739",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:91232",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-55653",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2462351",
"source": "[email protected]",
"tags": [
"Exploit",
"Issue Tracking",
"Vendor Advisory"
]
}
]
}