Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 4.2%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2026-90995
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cpe:2.3:a:fedoraproject:sssd:2.12.0
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cpe:2.3:a:redhat:openshift_container_platform:4.0
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cpe:2.3:o:redhat:enterprise_linux:10.0
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cpe:2.3:o:redhat:enterprise_linux:7.0
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cpe:2.3:o:redhat:enterprise_linux:8.0
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cpe:2.3:o:redhat:enterprise_linux:9.0