CVE-2026-104031 Sssd: sssd: denial of service via memory exhaustion in autofs responder
A local attacker can cause denial of service in SSSD by exhausting memory through repeated autofs requests on an open connection.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-104031?
CVE-2026-104031 is a medium-severity denial of service 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. 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).
Weakness: CWE-772
Which versions are affected by CVE-2026-104031?
It affects 3 products.
Products include Fedoraproject Sssd, Redhat Enterprise Linux, Redhat Openshift Container Platform.
How do I fix CVE-2026-104031?
No fix has been published for CVE-2026-104031 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-104031 being exploited?
There is no known exploitation of CVE-2026-104031 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
Sources
Also known as DEBIAN-CVE-2026-104031, GHSA-p584-gvqg-45c6, UBUNTU-CVE-2026-104031.