Vulnerability-Lookup

CERTFR-2026-AVI-0135

Vulnerability from certfr_avis - Published: 2026-02-09 - Updated: 2026-02-09

Une vulnérabilité a été découverte dans GitLab AI Gateway. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance et un déni de service à distance.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
GitLab	AI Gateway	GitLab AI Gateway versions 18.7.x antérieures à 18.7.1
GitLab	AI Gateway	GitLab AI Gateway versions 18.8.x antérieures à 18.8.1
GitLab	AI Gateway	GitLab AI Gateway versions antérieures à 18.6.2

References

Title

Publication Time

Tags

Bulletin de sécurité GitLab

2026-02-06

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "GitLab AI Gateway versions 18.7.x ant\u00e9rieures \u00e0 18.7.1",
      "product": {
        "name": "AI Gateway",
        "vendor": {
          "name": "GitLab",
          "scada": false
        }
      }
    },
    {
      "description": "GitLab AI Gateway versions 18.8.x ant\u00e9rieures \u00e0 18.8.1",
      "product": {
        "name": "AI Gateway",
        "vendor": {
          "name": "GitLab",
          "scada": false
        }
      }
    },
    {
      "description": "GitLab AI Gateway versions ant\u00e9rieures \u00e0 18.6.2",
      "product": {
        "name": "AI Gateway",
        "vendor": {
          "name": "GitLab",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-1868",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-1868"
    }
  ],
  "initial_release_date": "2026-02-09T00:00:00",
  "last_revision_date": "2026-02-09T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0135",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-02-09T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans GitLab AI Gateway. Elle permet \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance et un d\u00e9ni de service \u00e0 distance.",
  "title": "Vuln\u00e9rabilit\u00e9 dans GitLab AI Gateway",
  "vendor_advisories": [
    {
      "published_at": "2026-02-06",
      "title": "Bulletin de s\u00e9curit\u00e9 GitLab",
      "url": "https://about.gitlab.com/releases/2026/02/06/patch-release-gitlab-ai-gateway-18-8-1-released/"
    }
  ]
}

CVE-2026-1868 (GCVE-0-2026-1868)

Vulnerability from cvelistv5 – Published: 2026-02-09 06:33 – Updated: 2026-02-09 15:46

Title

Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway

Summary

GitLab has remediated a vulnerability in the Duo Workflow Service component of GitLab AI Gateway affecting all versions of the AI Gateway from 18.1.6, 18.2.6, 18.3.1 to 18.6.1, 18.7.0, and 18.8.0 in which AI Gateway was vulnerable to insecure template expansion of user supplied data via crafted Duo Agent Platform Flow definitions. This vulnerability could be used to cause Denial of Service or gain code execution on the Gateway. This has been fixed in versions 18.6.2, 18.7.1, and 18.8.1 of the GitLab AI Gateway.

Severity ?

9.9 (Critical)


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

CWE

CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine

Assigner

GitLab

References

URL

Tags

	https://gitlab.com/gitlab-org/modelops/applied-ml…
	https://about.gitlab.com/releases/2026/02/06/patc…

Impacted products

	Vendor	Product	Version
	GitLab	GitLab AI Gateway	Affected: 18.1.6 , < 18.6.2 (semver) Affected: 18.7.0 , < 18.7.1 (semver) Affected: 18.8.0 , < 18.8.1 (semver) cpe:2.3:a:gitlab:ai-gateway::::::::

Credits

This vulnerability has been discovered internally by GitLab team member Joern Schneeweisz

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1868",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-09T15:46:36.826269Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-09T15:46:45.991Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "GitLab AI Gateway",
          "vendor": "GitLab",
          "versions": [
            {
              "lessThan": "18.6.2",
              "status": "affected",
              "version": "18.1.6",
              "versionType": "semver"
            },
            {
              "lessThan": "18.7.1",
              "status": "affected",
              "version": "18.7.0",
              "versionType": "semver"
            },
            {
              "lessThan": "18.8.1",
              "status": "affected",
              "version": "18.8.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "This vulnerability has been discovered internally by GitLab team member Joern Schneeweisz"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "GitLab has remediated a vulnerability in the Duo Workflow Service component of GitLab AI Gateway affecting all versions of the AI Gateway from 18.1.6, 18.2.6, 18.3.1 to 18.6.1, 18.7.0, and 18.8.0 in which AI Gateway was vulnerable to insecure template expansion of user supplied data via crafted Duo Agent Platform Flow definitions. This vulnerability could be used to cause Denial of Service or gain code execution on the Gateway. This has been fixed in versions 18.6.2, 18.7.1, and 18.8.1 of the GitLab AI Gateway."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1336",
              "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T06:33:11.812Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/work_items/1850"
        },
        {
          "url": "https://about.gitlab.com/releases/2026/02/06/patch-release-gitlab-ai-gateway-18-8-1-released/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade self-hosted GitLab AI Gateway to version 18.6.2, 18.7.1, 18.8.1 or above."
        }
      ],
      "title": "Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2026-1868",
    "datePublished": "2026-02-09T06:33:11.812Z",
    "dateReserved": "2026-02-03T22:33:13.212Z",
    "dateUpdated": "2026-02-09T15:46:45.991Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2026-AVI-0135

Solutions

CVE-2026-1868 (GCVE-0-2026-1868)

Tags

Sightings

Nomenclature