CVE-2026-15154

Low

No strong exploitation signal.

CVSS base

6.5 MEDIUM

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

EPSS — probability of exploitation (30 days)

0.5%

39.5th percentile

CISA KEV

Not listed

Weakness / dates

CWE-1333

Published 2026-07-08 · modified 2026-09-08

CVSS breakdown

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

Attack Vector	A	Adjacent
Attack Complexity	L	Low
Privileges Required	N	None
User Interaction	N	None
Scope	U	Unchanged
Confidentiality	N	None
Integrity	N	None
Availability	H	High

Timeline

2026-07-08 — Published (NVD)
2026-09-08 — Last modified (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.

Affected

redhat

References

Official: NVD · CVE.org