MEDIUM 4.7 NVD
CVE-2026-104039
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
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.
References
- https://access.redhat.com/security/cve/CVE-2026-104039
- https://bugzilla.redhat.com/show_bug.cgi?id=2478956
This medium severity vulnerability with a CVSS score of 4.7 was published on 2026-10-06 via NVD.
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