CVE-2026-12610 — Vulnerability intelligence
fedoraproject — sssd
Published:
- CVSS
- 6.4
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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.