Source: sssd Version: 2.13.1-3 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for sssd. CVE-2026-90462[0]: | A flaw was found in SSSD. When configured with the LDAP access | provider and `ldap_access_order` including `ppolicy` or `lockout`, a | fail-open condition in the LDAP ppolicy access check can occur if a | user lookup returns zero results. This can incorrectly return | success and cache an allow decision, permitting continued | authorization for a deleted or deprovisioned user. A remote attacker | with prior valid account context could exploit this to maintain | access to information and potentially make limited modifications to | resources that should no longer be available. So far there is only the Red Hat reference, but upstream might already have handled it. I have not corss checked upstream issues yet or applied upstream commits. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-90462 https://www.cve.org/CVERecord?id=CVE-2026-90462 [1] https://bugzilla.redhat.com/show_bug.cgi?id=2479483 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
