What’s Vulnerable › Vulnerabilities

CVE-2026-104031: Sssd: sssd: denial of service via memory exhaustion in autofs responder

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-10-06 · updated 2026-10-28
• Weakness: CWE-772

Description

A flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly submitting valid requests, leading to memory exhaustion and a Denial of Service (DoS).

Affected products

• [UNKNOWN] sssd: 2.12.0 (and their updates)
• Red Hat Enterprise Linux: 7.0, 8.0, 9.0, 10.0 (and their updates)
• Red Hat OpenShift Container Platform 4.18: 4.0 (and their updates)
• Red Hat OpenShift Container Platform 4.18: all versions
• Red Hat Enterprise Linux 10: all versions
• Red Hat Enterprise Linux 7: all versions
• Red Hat Enterprise Linux 8: all versions
• Red Hat Enterprise Linux 9: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-104031
• https://bugzilla.redhat.com/show_bug.cgi?id=2479418

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