CVE-2026-10086

{
  "id": "CVE-2026-10086",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-25T05:16:50.530",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitLab has remediated an issue in GitLab EE affecting all versions from 16.4 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with developer-role permissions to execute arbitrary client-side code in the context of another user's 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 16.4 anterior a la 18.11.6, la 19.0 anterior a la 19.0.3 y la 19.1 anterior a la 19.1.1 que bajo ciertas condiciones podría haber permitido a un usuario autenticado con permisos de rol de desarrollador ejecutar código arbitrario del lado del cliente en el contexto de la sesión 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": "16.4",
              "lessThan": "18.11.6",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "19.0",
              "lessThan": "19.0.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "19.1",
              "lessThan": "19.1.1",
              "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": "2026-06-25T00:00:00+00:00",
          "id": "CVE-2026-10086",
          "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": "16.4.0",
              "versionEndExcluding": "18.11.6",
              "matchCriteriaId": "B6442921-C30A-4345-B0C2-14896044D93E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "versionStartIncluding": "19.0.0",
              "versionEndExcluding": "19.0.3",
              "matchCriteriaId": "D398AA66-56F3-4ED2-AD85-E2C094EE577E"
            },
            {
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              "criteria": "cpe:2.3:a:gitlab:gitlab:19.1.0:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "49957E0D-C888-4AB1-9C15-8CD6E55454B1"
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    }
  ],
  "references": [
    {
      "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/",
      "source": "[email protected]",
      "tags": [
        "Patch",
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/601634",
      "source": "[email protected]",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://hackerone.com/reports/3734800",
      "source": "[email protected]",
      "tags": [
        "Permissions Required"
      ]
    }
  ]
}