CVE-2026-6896

{
  "id": "CVE-2026-6896",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-08T21:16:55.097",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitLab has remediated an issue in GitLab EE affecting all versions from 13.11 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input."
    },
    {
      "lang": "es",
      "value": "GitLab ha remediado un problema en GitLab EE que afecta a todas las versiones desde la 13.11 antes de la 18.11.7, la 19.0 antes de la 19.0.4, y la 19.1 antes de la 19.1.2 que bajo ciertas condiciones podría haber permitido a un usuario autenticado con permisos de rol de desarrollador ejecutar scripts arbitrarios en la sesión del navegador de otro usuario debido a una sanitización inadecuada de la entrada proporcionada por el usuario."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "GitLab",
          "product": "GitLab",
          "defaultStatus": "unaffected",
          "cpes": [
            "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
          ],
          "repo": "git://[email protected]:gitlab-org/gitlab.git",
          "versions": [
            {
              "version": "13.11",
              "lessThan": "18.11.7",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "19.0",
              "lessThan": "19.0.4",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "19.1",
              "lessThan": "19.1.2",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 5.8
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-09T14:13:44.236024Z",
          "id": "CVE-2026-6896",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "versionStartIncluding": "13.11.0",
              "versionEndExcluding": "18.11.7",
              "matchCriteriaId": "32643EA5-8C1A-418A-A6B5-EDCADEC8C79E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "versionStartIncluding": "19.0.0",
              "versionEndExcluding": "19.0.4",
              "matchCriteriaId": "77F37C9F-5A51-4AD0-A919-F74CA49F8048"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "versionStartIncluding": "19.1.0",
              "versionEndExcluding": "19.1.2",
              "matchCriteriaId": "71AC7E45-C1B7-4EFE-8C29-E1D7ADD3D9F4"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-2-released/",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/597887",
      "source": "[email protected]",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://hackerone.com/reports/3682085",
      "source": "[email protected]",
      "tags": [
        "Permissions Required"
      ]
    }
  ]
}