CVE-2026-59999
Full vulnerability record from the local CVENow database.
Description
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-07-08 01:16:29.010000
Last modified
2026-10-25 20:10:00.147000
View original CVE JSON
{
"id": "CVE-2026-59999",
"sourceIdentifier": "[email protected]",
"published": "2026-07-08T01:16:29.010",
"lastModified": "2026-10-25T20:10:00.147",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not."
},
{
"lang": "es",
"value": "En sshd en OpenSSH anterior a 10.4, se suponía que DisableForwarding=yes tenía precedencia sobre PermitTunnel=yes, pero no fue así."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "OpenBSD",
"product": "OpenSSH",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "10.4",
"versionType": "custom",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.2,
"impactScore": 3.6
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-08T13:07:15.594672Z",
"id": "CVE-2026-59999",
"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-348"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.4",
"matchCriteriaId": "947E3B1E-F0DF-47BC-87D8-358B55B164AD"
}
]
}
]
}
],
"references": [
{
"url": "https://marc.info/?l=openssh-unix-dev&m=178333966933090&w=2",
"source": "[email protected]",
"tags": [
"Release Notes"
]
},
{
"url": "https://www.openssh.org/releasenotes.html#10.4p1",
"source": "[email protected]",
"tags": [
"Release Notes"
]
},
{
"url": "https://www.openwall.com/lists/oss-security/2026/07/06/5",
"source": "[email protected]",
"tags": [
"Mailing List",
"Release Notes"
]
}
]
}