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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.

PUBLISHED Reserved 2026-07-08 | Published 2026-07-08 | Updated 2026-07-08 | Assigner redhat




MEDIUM: 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Inefficient Regular Expression Complexity

Product status

Default status
affected

Timeline

2026-06-26:Reported to Red Hat.
2026-07-08:Made public.

References

access.redhat.com/security/cve/CVE-2026-15154 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2498188 (RHBZ#2498188) issue-tracking

cve.org (CVE-2026-15154)

nvd.nist.gov (CVE-2026-15154)

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