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

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-15154

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-15154

Red Hat OpenShift AI 2.25

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift AI 2.25

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift AI 3.3

Source reference: /containers/cna/affected/3/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift AI 3.3

Source reference: /containers/cna/affected/4/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift AI 3.4

Source reference: /containers/cna/affected/5/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift AI 3.4

Source reference: /containers/cna/affected/6/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "d857e059f8a2dedb5c7ea9a2c307c4cfd7983fd1",
        "versionType": "git"
      }
    ],
    "packageName": "guardrails-detectors",
    "collectionURL": "https://github.com/trustyai-explainability/guardrails-detectors",
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift_ai:2.25::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift AI 2.25",
    "versions": [
      {
        "status": "unaffected",
        "version": "1784230964",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhoai/odh-built-in-detector-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift_ai:2.25::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift AI 2.25",
    "versions": [
      {
        "status": "unaffected",
        "version": "1787235925",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhoai/odh-built-in-detector-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift_ai:3.3::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift AI 3.3",
    "versions": [
      {
        "status": "unaffected",
        "version": "1785137880",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhoai/odh-built-in-detector-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift_ai:3.3::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift AI 3.3",
    "versions": [
      {
        "status": "unaffected",
        "version": "1789573032",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhoai/odh-built-in-detector-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift_ai:3.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift AI 3.4",
    "versions": [
      {
        "status": "unaffected",
        "version": "1783569145",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhoai/odh-built-in-detector-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:openshift_ai:3.4::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift AI 3.4",
    "versions": [
      {
        "status": "unaffected",
        "version": "1786617316",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rhoai/odh-built-in-detector-rhel9",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-15154

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#4636 · Revision 1
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Publisher date
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