CVE-2026-104039Medium· 4.7▾ SunlitA flaw was found in SSSD. A local user can cause a denial of service (DoS) by disrupting system authentication services. When handling Generic Security Services Application Programming Interface (GSSAPI) authentication in the Pluggable A…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
A flaw was found in SSSD. A local user can cause a denial of service (DoS) by disrupting system authentication services. When handling Generic Security Services Application Programming Interface (GSSAPI) authentication in the Pluggable Authentication Module (PAM) responder, cached connection state is freed upon completion without clearing the reference pointer. An attacker can exploit this by sending an additional request over the same connection, causing the service to access invalid memory and unexpectedly terminate.
sssd (all versions)sssdsssd (all versions)sssd (all versions)sssd (all versions)openshift/ose-rhel-coreos-8 (all versions)openshift/ose-rhel-coreos-9 (all versions)Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-104034Medium· 4.7A flaw was found in SSSD
CVE-2026-104041Medium· 5.5Sssd: sssd: denial of service via unbounded negative cache growth
CVE-2026-104042Medium· 5.5Sssd: sssd: denial of service via out-of-bounds read in pam responder
CVE-2026-104040Medium· 4.4Sssd: sssd: information disclosure via odata injection in entra id lookups
CVE-2026-104043Medium· 5.5Sssd: sssd: denial of service via undersized packet parsing in nss responder
CVE-2026-104044Medium· 6.2Sssd: sssd: denial of service via crafted passkey kerberos authentication request