{"id":"CVE-2023-5831","summary":"Insertion of Sensitive Information Into Sent Data in GitLab","details":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.0 before 16.3.6, all versions starting from 16.4 before 16.4.2, and all versions starting from 16.5.0 before 16.5.1 which have the `super_sidebar_logged_out` feature flag enabled. Affected versions with this default-disabled feature flag enabled may unintentionally disclose GitLab version metadata to unauthorized actors.","aliases":["BIT-gitlab-2023-5831"],"modified":"2026-04-10T05:07:11.987814Z","published":"2023-11-06T10:30:28.442Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5831.json","cwe_ids":["CWE-201"],"cna_assigner":"GitLab"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5831.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5831"},{"type":"REPORT","url":"https://gitlab.com/gitlab-org/gitlab/-/issues/428919"},{"type":"PACKAGE","url":"git://git@gitlab.com:gitlab-org/gitlab.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"280a09dbca836a6eedf5da1e63953fe8da44bf4c"},{"fixed":"128862473d18a7df991090bb25688a8c81fcb0fe"}],"database_specific":{"versions":[{"introduced":"16.0"},{"fixed":"16.3.6"}]}},{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"e4c1c182610739c1b1d10a8eacbea1f5aa837ad6"},{"fixed":"385b9a2727ad972efe1fcdca3a61c447329ecd09"}],"database_specific":{"versions":[{"introduced":"16.4"},{"fixed":"16.4.2"}]}},{"type":"GIT","repo":"https://gitlab.com/gitlab-org/gitlab","events":[{"introduced":"fc87c9d4cca1536abcf902b4128f5c2004d87162"},{"fixed":"55da9ccb652fcf67641114264ecded0dab88f4dc"}],"database_specific":{"versions":[{"introduced":"16.5"},{"fixed":"16.5.1"}]}}],"versions":["v16.4.0-ee","v16.5.0-ee"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-5831.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}