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

CVE record · `CVE-2026-15154`

- **Identifiers:** `CVE-2026-15154`
- **State:** Confirmed
- **Severity:** CVSS 6.5 Medium
- **Critical:** No
- **CNA:** redhat
- **Weakness (CWE):** [CWE-1333](https://cwe.mitre.org/data/definitions/1333.html)
- **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md)
- **Technologies:** [Red Hat OpenShift AI 2.25](https://agentprime.io/advisories/technology/red-hat-openshift-ai-2-25.md) · [Red Hat OpenShift AI 3.3](https://agentprime.io/advisories/technology/red-hat-openshift-ai-3-3.md) · [Red Hat OpenShift AI 3.4](https://agentprime.io/advisories/technology/red-hat-openshift-ai-3-4.md)
- **Published:** 8 Jul 2026
- **Updated:** 30 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: redhat) at 8 Jul 2026, 19:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Not given. Product: Not given.
  - affected: `before d857e059f8a2dedb5c7ea9a2c307c4cfd7983fd1` (git)
  - Other versions: unaffected
  - Package name: `guardrails-detectors`
  - Collection: `https://github.com/trustyai-explainability/guardrails-detectors`
- Vendor: Red Hat. Product: Red Hat OpenShift AI 2.25.
  - unaffected: `1784230964 to before *` (rpm)
  - Other versions: affected
  - Package name: `rhoai/odh-built-in-detector-rhel9`
  - Collection: `https://catalog.redhat.com/software/containers/`
- Vendor: Red Hat. Product: Red Hat OpenShift AI 2.25.
  - unaffected: `1787235925 to before *` (rpm)
  - Other versions: affected
  - Package name: `rhoai/odh-built-in-detector-rhel9`
  - Collection: `https://catalog.redhat.com/software/containers/`
- Vendor: Red Hat. Product: Red Hat OpenShift AI 3.3.
  - unaffected: `1785137880 to before *` (rpm)
  - Other versions: affected
  - Package name: `rhoai/odh-built-in-detector-rhel9`
  - Collection: `https://catalog.redhat.com/software/containers/`
- Vendor: Red Hat. Product: Red Hat OpenShift AI 3.3.
  - unaffected: `1789573032 to before *` (rpm)
  - Other versions: affected
  - Package name: `rhoai/odh-built-in-detector-rhel9`
  - Collection: `https://catalog.redhat.com/software/containers/`
- Vendor: Red Hat. Product: Red Hat OpenShift AI 3.4.
  - unaffected: `1783569145 to before *` (rpm)
  - Other versions: affected
  - Package name: `rhoai/odh-built-in-detector-rhel9`
  - Collection: `https://catalog.redhat.com/software/containers/`
- Vendor: Red Hat. Product: Red Hat OpenShift AI 3.4.
  - unaffected: `1786617316 to before *` (rpm)
  - Other versions: affected
  - Package name: `rhoai/odh-built-in-detector-rhel9`
  - Collection: `https://catalog.redhat.com/software/containers/`

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 6.5 Medium, CVSS 3.1: `CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from CNA (redhat)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0048, the 41st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 8 Jul 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-15154](https://www.cve.org/CVERecord?id=CVE-2026-15154)
- [NVD: CVE-2026-15154](https://nvd.nist.gov/vuln/detail/CVE-2026-15154)

### References from the CNA

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

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-15154>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-15154/>. Everything for agents: <https://agentprime.io/llms.txt>.