CVE-2026-5419
Full vulnerability record from the local CVENow database.
Description
A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure.
Severity
LOW
CVSS score
3.7
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-06-01 21:16:47.480000
Last modified
2026-11-03 19:18:08.560000
View original CVE JSON
{
"id": "CVE-2026-5419",
"sourceIdentifier": "[email protected]",
"published": "2026-06-01T21:16:47.480",
"lastModified": "2026-11-03T19:18:08.560",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure."
},
{
"lang": "es",
"value": "Se encontró una falla en gnutls. La verificación del relleno PKCS#7, realizada durante el descifrado, no era de tiempo constante. Este canal lateral de temporización podría permitir a un atacante remoto filtrar potencialmente información sensible sobre los bytes de relleno a través de diferencias de temporización observables. Esta vulnerabilidad es una forma de revelación de información."
}
],
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{
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{
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],
"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:L/I:N/A:N",
"baseScore": 3.7,
"baseSeverity": "LOW",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
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"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-02T12:35:30.709028Z",
"id": "CVE-2026-5419",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
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}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-208"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:13274",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:20612",
"source": "[email protected]"
},
{
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"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:26319",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:26409",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:29197",
"source": "[email protected]"
},
{
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},
{
"url": "https://access.redhat.com/errata/RHSA-2026:32962",
"source": "[email protected]"
},
{
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},
{
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},
{
"url": "https://access.redhat.com/errata/RHSA-2026:74674",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82304",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82322",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82347",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82354",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82372",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82857",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:82888",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-5419",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467686",
"source": "[email protected]"
},
{
"url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-13",
"source": "[email protected]"
}
]
}