CVE-2026-104045: Sssd: sssd: denial of service via race condition in autofs responder

Severity: medium (CVSS 4.7 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 2026-10-13
Weakness: CWE-772

Description

A flaw was found in SSSD. A local user can trigger a Denial of Service (DoS) by exploiting a race condition in the autofs responder between asynchronous enumeration completion and map invalidation. By repeatedly sending concurrent map enumeration and invalidation requests, an attacker can cause memory to leak, leading to excessive memory consumption that can disrupt or crash the autofs service.

Affected products

[UNKNOWN] sssd: 2.12.0
Red Hat Enterprise Linux: 7.0, 8.0, 9.0, 10.0
Red Hat OpenShift Container Platform 4.18: 4.0

References

https://access.redhat.com/security/cve/CVE-2026-104045
https://bugzilla.redhat.com/show_bug.cgi?id=2478663
https://bugzilla.redhat.com/show_bug.cgi?id=2478663

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