{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "12.0.0"
              },
              {
                "fixed": "18.10.8"
              },
              {
                "introduced": "18.11.0"
              },
              {
                "fixed": "18.11.5"
              },
              {
                "introduced": "19.0.0"
              },
              {
                "fixed": "19.0.2"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "3b13818e8330f68625d80d9bf5d8049c41fbe197"
            },
            {
              "fixed": "691141944493a0faa4bc3229af2e6a8663e58653"
            },
            {
              "introduced": "1060c7b0ff78be7c8abe8fd6d23dcb1ca493fd78"
            },
            {
              "fixed": "9b638f3c6869a41d392cc3f77cfd68c8a06bda5f"
            },
            {
              "introduced": "f07e3c5b3c8128be5db112e5b2b618fe31ea1b35"
            },
            {
              "fixed": "86c99d562e4d6929fc43de673da9e48155f9ad95"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "GitLab",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3553.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "12.0"
          },
          {
            "fixed": "18.10.8"
          },
          {
            "introduced": "18.11"
          },
          {
            "fixed": "18.11.5"
          },
          {
            "introduced": "19.0"
          },
          {
            "fixed": "19.0.2"
          }
        ],
        "source": "AFFECTED_FIELD"
      },
      {
        "extracted_events": [
          {
            "introduced": "12.0"
          },
          {
            "fixed": "18.10.8"
          },
          {
            "introduced": "18.11"
          },
          {
            "fixed": "18.11.5"
          },
          {
            "introduced": "19.0"
          },
          {
            "fixed": "19.0.2"
          }
        ],
        "source": "DESCRIPTION"
      }
    ]
  },
  "details": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issue details due to incorrect authorization checks.",
  "id": "CVE-2026-3553",
  "modified": "2026-08-17T03:36:33.000240849Z",
  "published": "2026-06-11T10:21:26.429Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/592295"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3553.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3553"
    },
    {
      "type": "REPORT",
      "url": "https://hackerone.com/reports/3578216"
    },
    {
      "type": "PACKAGE",
      "url": "git://git@gitlab.com:gitlab-org/gitlab.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Incorrect Authorization in GitLab"
}