CVE-2026-18941 Missing authorization in Red Hat OpenShift AI (RHOAI)
Default no-auth configuration in Feast allows remote attackers to execute code, access cross-tenant data, and cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18941?
CVE-2026-18941 is a high-severity missing authorization vulnerability in Red Hat OpenShift AI (RHOAI), published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in Feast and feast-operator. The default configuration for both the Feast SDK and the feast-operator is "no_auth," meaning no security manager is installed. This default allows unauthenticated and unauthorized access to feature-server, registry-server, and offline-server endpoints. A remote attacker, by exploiting this missing authentication, could achieve remote code execution (RCE) by storing a malicious User-Defined Function (UDF) on the feature-server, trigger a denial of service (DoS) by forcing re-materialization of all tenant features, and gain unauthorized access to cross-tenant data.
Weakness: CWE-306
Which versions are affected by CVE-2026-18941?
How do I fix CVE-2026-18941?
No fix has been published for CVE-2026-18941 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-18941 being exploited?
There is no known exploitation of CVE-2026-18941 in the wild and no public exploit code.
Sources
Also known as GHSA-2xfw-wg76-86w9.