Medium 6.5Published Jul 8, 2026

CVE-2026-15154Guardrails-detectors: guardrails-detectors: unauthenticated regular-expression denial of service (redos) via detector_params.regex

Updated under an hour ago (Oct 27, 2026, 1:23 AM ET)

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It affects Red Hat OpenShift AI 2.25. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat OpenShift AI 2.25

Exploited in the last 30 days

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: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-1333
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Modified
Record last updated: Sep 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat OpenShift AI 2.25 redhat:openshift_ai	from 1784230964 not affected	CNA record
redhat openshift_ai redhat:openshift_ai	all versions	NVD

References

References

https://access.redhat.com/errata/RHSA-2026:53261	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:53262	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:53263	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:60520	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:65126	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:73987	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-15154	vdb-entry, x-refsource-redhat, vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2498188	issue-tracking, x-refsource-redhat, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.