CVE-2026-104044
MEDIUM
6,2
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Description
AI Translation Available
A flaw was found in sssd. A local attacker can trigger a Denial of Service (DoS) by sending a specially crafted Pluggable Authentication Module (PAM) request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an uninitialized pointer and crashes. This failure disrupts authentication services on the host.
476
NULL Pointer Dereference
StableCommon Consequences
Security Scopes Affected:
Availability
Integrity
Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart
Execute Unauthorized Code Or Commands
Read Memory
Modify Memory
Applicable Platforms
Languages:
C, C++, Java, C#, Go
https://access.redhat.com/security/cve/CVE-2026-104044
https://bugzilla.redhat.com/show_bug.cgi?id=2478664