CVE-2026-90995

A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the `pam_app_services` configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM responder to crash and disrupt authentication services.

Score
CVSS 3.1 5.5 Medium
Status
Analyzed - secalert@redhat.com
Published
2026-09-14
Last modified
2026-10-14
Weaknesses
CWE-476

Affected products

References

 
 
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