CVE-2026-15154 Denial of service in Red Hat OpenShift AI 2.25

Medium 6.5 Published 8 Jul 2026 Updated 30 Sep 2026

Remote attackers can cause denial of service in Red Hat OpenShift AI by submitting malicious regex patterns to the detection API.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-15154?

CVE-2026-15154 is a medium-severity denial of service vulnerability in Red Hat OpenShift AI 2.25, published on 8 Jul 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 `guardrails-detectors`, a component of Red Hat OpenShift AI. This vulnerability, known as Regular Expression Denial of Service (ReDoS), allows a remote attacker to provide specially crafted regular expressions to the public detection API. This can cause catastrophic backtracking, leading to a worker process consuming 100% CPU indefinitely and resulting in a denial of service for the entire guardrails-mediated LLM pipeline.

Weakness: CWE-1333

Which versions are affected by CVE-2026-15154?

It affects 1 product.

Products include Redhat Openshift Ai.

How do I fix CVE-2026-15154?

No fix has been published for CVE-2026-15154 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-2026-15154 being exploited?

There is no known exploitation of CVE-2026-15154 in the wild and no public exploit code.

Sources

Also known as GHSA-jm96-7wvj-j3r9.