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Vulnerability record · CVE-2026-15154 · published 8 July 2026

CVE-2026-15154: Redhat openshift ai inefficient regular expression (redos) vulnerability

Redhat · Openshift Ai

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.

6.5 CVSS 3.1 Medium EPSS 0.46% · top 62.2% CWE-1333 · Inefficient regular expression (ReDoS)
6.5CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
8 Sep 2026Last modified by NVD

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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/errata/RHSA-2026:60520
https://access.redhat.com/errata/RHSA-2026:65126
https://access.redhat.com/security/cve/CVE-2026-15154 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2498188 Issue TrackingVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-15154), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.