Vulnerability in Red Hat Openshift Ai 2.25

CVE-2026-15154

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.

Vulnerability class: ReDoS (Regular Expression Denial of Service)

EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15154?
CVE-2026-15154 is a medium-severity vulnerability in Red Hat Openshift Ai 2.25, classified under Inefficient Regular Expression Complexity. CVSS score: 6.5/10. Published 2026-07-08.
How severe is CVE-2026-15154?
Medium severity. CVSS v3 base score is 6.5 out of 10.