{"id":"CVE-2023-3994","summary":"Inefficient Regular Expression Complexity in GitLab","details":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.","aliases":["BIT-gitlab-2023-3994"],"modified":"2026-02-18T03:45:31.442701Z","published":"2023-08-02T00:06:50.342Z","database_specific":{"cwe_ids":["CWE-1333"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3994.json","cna_assigner":"GitLab"},"references":[{"type":"PACKAGE","url":"git://git@gitlab.com:gitlab-org/gitlab.git"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3994.json"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/gitlab/-/issues/416225"},{"type":"REPORT","url":"https://hackerone.com/reports/1963255"},{"type":"ARTICLE","url":"https://hackerone.com/reports/1963255"},{"type":"EVIDENCE","url":"https://hackerone.com/reports/1963255"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3994"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"53f18d8326e26304f6df0996c615ca72b6a85e5b"},{"fixed":"b989ef135498a860c86648c76637bb14442da7c5"}],"database_specific":{"versions":[{"introduced":"9.3"},{"fixed":"16.0.8"}]}},{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"4961ad113f3afe23965ac12285eaab31315ab0c6"},{"fixed":"6bcf60f9a21c6f86f2f4760b7055919a3d33ce62"}],"database_specific":{"versions":[{"introduced":"16.1"},{"fixed":"16.1.3"}]}},{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"3adc0fe6e7c163bedd7faa5f0c4d1e5fbb6bf3c5"},{"fixed":"2e273e251efba974e60d7c2e73df2dc30b89a816"}],"database_specific":{"versions":[{"introduced":"16.2"},{"fixed":"16.2.2"}]}}],"versions":["11-10-0cfa69752d8-0d9531c80-ee","11-10-0cfa69752d8-74ffd66ae-ee","11-10-119f9509d50-6d7537235-ee","v10.1.0.pre","v10.2.0.pre","v10.3.0.pre","v10.4.0.pre","v10.5.0.pre","v10.6.0.pre","v10.7.0.pre","v10.8.0.pre","v10.9.0.pre","v11.0.0.pre","v11.1.0.pre","v11.2.0.pre","v11.3.0.pre","v16.0.0-ee","v16.0.0-rc42-ee","v16.0.1-ee","v16.0.2-ee","v16.0.3-ee","v16.0.4-ee","v16.0.5-ee","v16.0.6-ee","v16.0.7-ee","v16.1.0-ee","v16.1.1-ee","v16.1.2-ee","v16.2.0-ee","v16.2.1-ee","v6.0.0-ee","v6.0.0-ee.beta","v6.0.0-ee.rc1","v6.1.0-ee","v6.2.1","v6.2.2","v6.3.0-ee","v6.3.1-ee","v6.4.0-ee","v6.4.1","v6.4.2","v6.4.3","v6.5.0-ee","v6.5.1","v6.6.0-ee","v6.6.1","v6.6.2","v6.7.0-ee","v6.7.0.rc1-ee","v6.7.1","v6.7.2","v6.8.0-ee","v6.8.1","v7.0.0-ee","v7.1.0-ee","v7.1.0.rc1-ee","v7.2.0.rc1-ee","v7.2.0.rc2-ee","v7.2.0.rc3-ee","v7.2.0.rc4-ee","v7.2.0.rc5-ee","v7.3.0-ee","v7.3.0.rc1-ee","v7.4.0-ee","v7.4.1-ee","v7.4.2-ee","v7.4.3-ee","v7.4.4-ee","v8.11.0","v8.11.0-ee","v8.11.0-rc1","v8.11.0-rc1-ee","v8.11.0-rc2","v8.11.0-rc2-ee","v8.11.0-rc3","v8.11.0-rc3-ee","v8.11.0-rc4","v8.11.0-rc4-ee","v8.11.0-rc5","v8.11.0-rc5-ee","v8.11.0-rc6","v8.11.0-rc6-ee","v8.11.0-rc7","v8.11.0-rc7-ee","v8.11.1","v8.12.0","v8.12.0-ee","v8.12.0-rc1","v8.12.0-rc1-ee","v8.12.0-rc2","v8.12.0-rc2-ee","v8.12.0-rc3","v8.12.0-rc3-ee","v8.12.0-rc4","v8.12.0-rc4-ee","v8.12.0-rc5","v8.12.0-rc5-ee","v8.12.0-rc6","v8.12.0-rc6-ee","v8.12.0-rc7","v8.12.0-rc7-ee","v8.12.0.pre","v8.12.1","v8.12.1-ee","v8.12.2","v8.12.2-ee","v8.12.3-ee","v8.2.0-ee","v8.2.0.rc1","v8.2.0.rc1-ee","v8.2.0.rc2","v8.2.0.rc2-ee","v8.8.0","v8.8.0-ee","v8.8.0-rc1","v8.8.0-rc1-ee","v8.8.0-rc2","v8.8.0-rc2-ee","v8.8.1-ee","v9.3.0.pre","v9.5.0.pre","v9.6.0.pre"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-3994.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}