NVD

CVE-2026-15154 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

Nist CVSS score does not match with CNA score

CNA: Red Hat, Inc.

Base Score: 6.5 MEDIUM

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2026:53261	Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:53262	Red Hat, Inc.
https://access.redhat.com/errata/RHSA-2026:53263	Red Hat, Inc.
https://access.redhat.com/security/cve/CVE-2026-15154	Red Hat, Inc.	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2498188	Red Hat, Inc.	Issue Tracking Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1333	Inefficient Regular Expression Complexity	Red Hat, Inc.

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Change History

5 change records found show changes

CVE Modified by Red Hat, Inc. 8/11/2026 3:17:20 PM

Action

Type

Old Value

New Value

Added

Reference

https://access.redhat.com/errata/RHSA-2026:53261

Added

Reference

https://access.redhat.com/errata/RHSA-2026:53262

Changed

Affected

[{"vendor":"Red Hat","product":"Red Hat OpenShift AI 3.3","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhoai/odh-built-in-detector-rhel9","cpes":["cpe:/a:redhat:openshift_ai:3.3::el9"],"versions":[{"version":"1785137880","lessThan":"*","versionType":"rpm","status":"unaffected"}]}]

[{"vendor":"Red Hat","product":"Red Hat OpenShift AI 2.25","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhoai/odh-built-in-detector-rhel9","cpes":["cpe:/a:redhat:openshift_ai:2.25::el9"],"versions":[{"version":"1784230964","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI 3.3","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhoai/odh-built-in-detector-rhel9","cpes":["cpe:/a:redhat:openshift_ai:3.3::el9"],"versions":[{"version":"1785137880","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI 3.4","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhoai/odh-built-in-detector-rhel9","cpes":["cpe:/a:redhat:openshift_ai:3.4::el9"],"versions":[{"version":"1783569145","lessThan":"*","versionType":"rpm","status":"unaffected"}]}]

New CVE Received from Red Hat, Inc. 7/08/2026 4:16:48 PM

Action	Type	New Value
Added	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.
Added	CVSS V3.1	AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CWE	CWE-1333
Added	Reference	https://access.redhat.com/security/cve/CVE-2026-15154
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=2498188
Added	Affected	[{"vendor":"Red Hat","product":"Red Hat OpenShift AI (RHOAI)","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhoai/odh-built-in-detector-rhel9","cpes":["cpe:/a:redhat:openshift_ai"]}]

Quick Info

CVE Dictionary Entry:
CVE-2026-15154
NVD Published Date:
07/08/2026
NVD Last Modified:
08/11/2026
Source:
Red Hat, Inc.

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