cve-2025-2256
Vulnerability from cvelistv5
Published
2025-09-12 06:06
Modified
2025-09-12 17:19
Summary
Improper Validation of Specified Quantity in Input in GitLab
Impacted products
GitLabGitLab
Show details on NVD website


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              "content": {
                "id": "CVE-2025-2256",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-12T17:19:23.671886Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2025-09-12T17:19:32.801Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "GitLab",
          "repo": "git://git@gitlab.com:gitlab-org/gitlab.git",
          "vendor": "GitLab",
          "versions": [
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              "lessThan": "18.1.6",
              "status": "affected",
              "version": "7.12",
              "versionType": "semver"
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              "status": "affected",
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Thanks [yuki_osaki](https://hackerone.com/yuki_osaki) and [lambdasawa](https://hackerone.com/lambdasawa) for reporting this vulnerability through our HackerOne bug bounty program"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": "An issue has been discovered in GitLab CE/EE affecting all versions from 7.12 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed unauthorized users to render the GitLab instance unresponsive to legitimate users by sending multiple concurrent large SAML responses."
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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1284",
              "description": "CWE-1284: Improper Validation of Specified Quantity in Input",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-12T06:06:04.796Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://about.gitlab.com/releases/2025/09/10/patch-release-gitlab-18-3-2-released/"
        },
        {
          "name": "GitLab Issue #524633",
          "tags": [
            "issue-tracking",
            "permissions-required"
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          "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/524633"
        },
        {
          "name": "HackerOne Bug Bounty Report #3019485",
          "tags": [
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            "exploit",
            "permissions-required"
          ],
          "url": "https://hackerone.com/reports/3019485"
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      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to versions 18.1.6, 18.2.6, 18.3.2 or above."
        }
      ],
      "title": "Improper Validation of Specified Quantity in Input in GitLab"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2025-2256",
    "datePublished": "2025-09-12T06:06:04.796Z",
    "dateReserved": "2025-03-12T15:05:04.877Z",
    "dateUpdated": "2025-09-12T17:19:32.801Z",
    "state": "PUBLISHED"
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  }
}


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