Vulnerability Details CVE-2026-88252
A flaw was found in sssd. A local user can cause a Denial of Service (DoS) by exhausting the responder service's available file descriptors (system handles used for open connections). By opening and maintaining many concurrent connections to a responder socket while continuing to queue new connection attempts, an attacker can trigger an unthrottled retry loop. This condition leads to high CPU utilization and stalls the service, preventing legitimate identity and authentication requests from being processed.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 3.3%
CVSS Severity
CVSS v3 Score 4.7
References
Products affected by CVE-2026-88252
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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