https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-02T20:58:58.518760+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-12610 UBUNTU-CVE-2026-12610 2026-10-02T20:58:58.521183+00:00

Affected: Ubuntu:Pro:16.04:LTS: sssd, Ubuntu:Pro:18.04:LTS: sssd, Ubuntu:Pro:20.04:LTS: sssd, Ubuntu:22.04:LTS: sssd, Ubuntu:24.04:LTS: sssd, Ubuntu:25.10: sssd, Ubuntu:26.04:LTS: sssd

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.