CVE-2026-19889 (GCVE-0-2026-19889)

Vulnerability from cvelistv5 – Published: 2026-08-27 16:33 – Updated: 2026-08-27 16:33
VLAI
Title
Server-Side Request Forgery (SSRF) in GitLab AI Gateway
Summary
GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.9.0 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect model requests to an externally-controlled endpoint via crafted model metadata, resulting in the disclosure of Google Vertex AI or AWS Bedrock cloud service credentials.
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
URL Tags
https://gitlab.com/gitlab-org/gitlab/-/work_items…
https://hackerone.com/reports/3938027 technical-descriptionexploitpermissions-required
Impacted products
Vendor Product Version CPE status
GitLab GitLab AI Gateway Affected: 18.9 , < 19.0.12 (semver)
Affected: 19.1 , < 19.1.7 (semver)
Affected: 19.2 , < 19.2.2 (semver)
    cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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    "cna": {
      "affected": [
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            "cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*"
          ],
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          "vendor": "GitLab",
          "versions": [
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              "status": "affected",
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              "versionType": "semver"
            },
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              "status": "affected",
              "version": "19.1",
              "versionType": "semver"
            },
            {
              "lessThan": "19.2.2",
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              "version": "19.2",
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            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Thanks [kyyblin](https://hackerone.com/kyyblin) for reporting this vulnerability through our HackerOne bug bounty program"
        }
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          "value": "GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.9.0 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect model requests to an externally-controlled endpoint via crafted model metadata, resulting in the disclosure of Google Vertex AI or AWS Bedrock cloud service credentials."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T16:33:50.570Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/614164"
        },
        {
          "name": "HackerOne Bug Bounty Report #3938027",
          "tags": [
            "technical-description",
            "exploit",
            "permissions-required"
          ],
          "url": "https://hackerone.com/reports/3938027"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 19.0.12, 19.1.7, 19.2.2, 19.3.0 or newer"
        }
      ],
      "title": "Server-Side Request Forgery (SSRF) in GitLab AI Gateway"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2026-19889",
    "datePublished": "2026-08-27T16:33:50.570Z",
    "dateReserved": "2026-08-14T17:04:29.105Z",
    "dateUpdated": "2026-08-27T16:33:50.570Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-19889\",\"sourceIdentifier\":\"cve@gitlab.com\",\"published\":\"2026-08-27T17:17:43.170\",\"lastModified\":\"2026-08-27T17:17:43.170\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.9.0 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect model requests to an externally-controlled endpoint via crafted model metadata, resulting in the disclosure of Google Vertex AI or AWS Bedrock cloud service credentials.\"}],\"affected\":[{\"source\":\"cve@gitlab.com\",\"affectedData\":[{\"vendor\":\"GitLab\",\"product\":\"GitLab AI Gateway\",\"defaultStatus\":\"unaffected\",\"cpes\":[\"cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"18.9\",\"lessThan\":\"19.0.12\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"19.1\",\"lessThan\":\"19.1.7\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"19.2\",\"lessThan\":\"19.2.2\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":5.8}]},\"weaknesses\":[{\"source\":\"cve@gitlab.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-918\"}]}],\"references\":[{\"url\":\"https://gitlab.com/gitlab-org/gitlab/-/work_items/614164\",\"source\":\"cve@gitlab.com\"},{\"url\":\"https://hackerone.com/reports/3938027\",\"source\":\"cve@gitlab.com\"}]}}"
  }
}



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