{"id":"CVE-2026-105777","aliases":["BIT-gitlab-2026-105777","EUVD-2026-107673","GHSA-3w94-rpmr-77jr"],"status":"published","title":"Insertion of Sensitive Information Into Sent Data in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00277,"percentile":0.20341,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-201"],"published":"2026-10-21T23:34:25Z","modified":"2026-11-04T23:10:00Z","fixes":[{"ecosystem":"Bitnami","package":"gitlab","fixed_in":["19.3.6","19.4.3","19.5.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"gitlab","ranges":[{"type":"SEMVER","events":[{"introduced":"17.6.5"},{"fixed":"19.3.6"},{"introduced":"19.4.0"},{"fixed":"19.4.3"},{"introduced":"19.5.0"},{"fixed":"19.5.1"}]}]}],"products":[{"vendor":"gitlab","product":"gitlab"}],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/597022","tags":["Permissions Required","web"]},{"url":"https://hackerone.com/reports/3657282","tags":["technical-description","exploit","permissions-required","Permissions Required","web","report"]},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/","tags":["Release Notes","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105777","tags":["web","advisory"]},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released"},{"url":"https://github.com/advisories/GHSA-3w94-rpmr-77jr"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105777.json","tags":["advisory"]},{"url":"https://gitlab.com/gitlab-org/gitlab","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-105777","title":"Insertion of Sensitive Information Into Sent Data in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","status":"published","published":"2026-10-21T23:34:25.44Z","modified":"2026-10-30T17:18:23.749Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-201"],"updated_at":"2026-11-02T14:19:56.755658Z"}],"euvd":[{"id":"EUVD-2026-107673","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","status":"published","published":"2026-10-21T23:34:25Z","modified":"2026-10-30T17:18:23Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:59:05.567782Z"}],"ghsa":[{"id":"GHSA-3w94-rpmr-77jr","title":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6,...","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","status":"published","published":"2026-10-22T03:33:33Z","modified":"2026-10-22T03:33:41Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-201"],"updated_at":"2026-11-02T15:14:14.973906Z"}],"nvd":[{"id":"CVE-2026-105777","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","status":"published","published":"2026-10-22T01:16:57.467Z","modified":"2026-11-04T23:10:00.223Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-201"],"updated_at":"2026-11-05T01:45:12.506753Z"}],"osv":[{"id":"CVE-2026-105777","title":"Insertion of Sensitive Information Into Sent Data in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","status":"published","published":"2026-10-21T23:34:25.44Z","modified":"2026-11-05T21:16:23.887999692Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-201"],"updated_at":"2026-11-05T22:00:58.054534Z"},{"id":"BIT-gitlab-2026-105777","title":"Insertion of Sensitive Information Into Sent Data in GitLab","description":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.6.5 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, an unauthenticated user could have retrieved sensitive internal server credentials due to improper filtering of internal response headers.","status":"published","published":"2026-10-29T09:09:58.725Z","modified":"2026-10-29T10:45:03.861512727Z","updated_at":"2026-11-02T15:28:30.70064Z"}]}}