CVE-2026-15154: Inefficient Regular Expression Complexity in Red Hat Red Hat OpenShift AI 2.25
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.
AI Analysis
Technical Summary
The vulnerability in guardrails-detectors of Red Hat OpenShift AI 3.3 allows an unauthenticated attacker with network adjacency to exploit inefficient regular expression complexity, causing catastrophic backtracking and indefinite CPU resource consumption. This leads to denial of service for the guardrails-mediated LLM pipeline. The attack vector is adjacent network with low attack complexity and no privileges or user interaction required. Red Hat has assigned a CVSS v3.1 base score of 6.5 (medium severity) reflecting high availability impact but no confidentiality or integrity impact. Updated container images and Red Hat OpenShift AI 3.3.6 have been released to mitigate this vulnerability.
Potential Impact
Exploitation results in denial of service by consuming 100% CPU indefinitely on worker processes handling the detection API, disrupting the guardrails-mediated LLM pipeline. There is no impact on confidentiality or integrity. The vulnerability requires network adjacency and does not require authentication or user interaction.
Mitigation Recommendations
Red Hat has released updated container images and Red Hat OpenShift AI version 3.3.6 that address this vulnerability. Users should upgrade to Red Hat OpenShift AI 3.3.6 and apply the updated images as per Red Hat's official documentation to fully mitigate the issue. No additional mitigations are specified or required beyond applying the official fix.
CVE-2026-15154: Inefficient Regular Expression Complexity in Red Hat Red Hat OpenShift AI 2.25
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 v3.1
Score 6.5medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in guardrails-detectors of Red Hat OpenShift AI 3.3 allows an unauthenticated attacker with network adjacency to exploit inefficient regular expression complexity, causing catastrophic backtracking and indefinite CPU resource consumption. This leads to denial of service for the guardrails-mediated LLM pipeline. The attack vector is adjacent network with low attack complexity and no privileges or user interaction required. Red Hat has assigned a CVSS v3.1 base score of 6.5 (medium severity) reflecting high availability impact but no confidentiality or integrity impact. Updated container images and Red Hat OpenShift AI 3.3.6 have been released to mitigate this vulnerability.
Potential Impact
Exploitation results in denial of service by consuming 100% CPU indefinitely on worker processes handling the detection API, disrupting the guardrails-mediated LLM pipeline. There is no impact on confidentiality or integrity. The vulnerability requires network adjacency and does not require authentication or user interaction.
Mitigation Recommendations
Red Hat has released updated container images and Red Hat OpenShift AI version 3.3.6 that address this vulnerability. Users should upgrade to Red Hat OpenShift AI 3.3.6 and apply the updated images as per Red Hat's official documentation to fully mitigate the issue. No additional mitigations are specified or required beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-08T19:44:43.020Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-15154","vendor":"Red Hat"}]
Threat ID: 6a4eafe7c9d9e3dbe3adea04
Added to database: 07/08/2026, 20:15:35 UTC
Last enriched: 08/11/2026, 13:43:15 UTC
Last updated: 08/22/2026, 10:52:07 UTC
Views: 61
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