CVE-2026-109976

A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon crashes when an AF_UNIX client connects to the data socket without a bound address, due to an integer underflow in the getpeername result handling. This causes a denial of service, preventing LUKS disk decryption from completing during boot.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-109976
https://bugzilla.redhat.com/show_bug.cgi?id=2550375
https://bugzilla.redhat.com/show_bug.cgi?id=2550375

Configurations

No configuration.

History

14 Oct 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=2550375 -~~	() https://bugzilla.redhat.com/show_bug.cgi?id=2550375 -

13 Oct 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 13:17

Updated : 2026-10-30 09:17

NVD link : CVE-2026-109976

Mitre link : CVE-2026-109976

CVE.ORG link : CVE-2026-109976

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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