Regular Expression Vulnerability in Red Hat OpenShift AI's Guardrails-Detectors
CVE-2026-15154

6.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Openshift Ai (rhoai)
Vendor
CVE Published:
8 July 2026

What is CVE-2026-15154?

A vulnerability exists in the guardrails-detectors component of Red Hat OpenShift AI that exposes systems to a Denial of Service (DoS) attack via Regular Expression Denial of Service (ReDoS). By sending specially crafted regular expressions to the public detection API, a remote attacker can trigger catastrophic backtracking in the regex engine. This condition can lead to excessive CPU usage, effectively causing the guardrails-mediated LLM pipeline to become unresponsive. As a result, resource consumption may spike to 100%, disrupting service availability for users reliant on the API.

References

https://access.redhat.com/security/cve/CVE-2026-15154
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2498188
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.