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

What is CVE-2026-104045?

CVE-2026-104045 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-772

Which versions are affected by CVE-2026-104045?

It affects 3 products.

Products include Fedoraproject Sssd, Redhat Enterprise Linux, Redhat Openshift Container Platform.

How do I fix CVE-2026-104045?

Apply the vendor's patch.

Is CVE-2026-104045 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-104045 exists.

Other vulnerabilities in Redhat Enterprise Linux

• CVE-2022-4254 Other in SSSD High 8.8
• CVE-2012-3462 Auth bypass in sssd High 8.8
• CVE-2026-104048 Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation Medium 6.8
• CVE-2015-5292 Denial of service in n/a Medium 6.8
• CVE-2026-12610 Sssd: use-after-free crash in sssd' 'sssd_pam' process Medium 6.4

All Redhat Enterprise Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-104045, GHSA-8wp7-x59q-g576, UBUNTU-CVE-2026-104045.