CVE-2026-12610

Full vulnerability record from the local CVENow database.
Description

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.
Severity
MEDIUM
CVSS score
6.4 (v3.1)
Vulnerability status
Undergoing Analysis
Source identifier
[email protected]
Published
2026-06-30 10:16:34.397000
Last modified
2026-11-04 11:17:14.170000
View original CVE JSON
{
  "id": "CVE-2026-12610",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-30T10:16:34.397",
  "lastModified": "2026-11-04T11:17:14.170",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
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          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
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}