CVE-2026-15154 — MEDIUM (6.5)

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Redhat	Openshift Ai	-

Related Weaknesses (CWE)

CWE-1333

References

https://access.redhat.com/errata/RHSA-2026:53261
https://access.redhat.com/errata/RHSA-2026:53262
https://access.redhat.com/errata/RHSA-2026:53263
https://access.redhat.com/security/cve/CVE-2026-15154Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2498188Issue TrackingVendor Advisory

FAQ

What is CVE-2026-15154?

CVE-2026-15154 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 speciall...

How severe is CVE-2026-15154?

CVE-2026-15154 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-15154?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Openshift Ai.