{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-6840", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2023-12-15T12:02:46.848Z", "datePublished": "2024-02-07T22:02:20.934Z", "dateUpdated": "2026-04-24T04:07:19.586Z" }, "containers": { "cna": { "title": "Missing Authorization in GitLab", "descriptions": [ { "lang": "en", "value": "An issue has been discovered in GitLab EE affecting all versions from 16.4 prior to 16.6.7, 16.7 prior to 16.7.5, and 16.8 prior to 16.8.2 which allows a maintainer to change the name of a protected branch that bypasses the security policy added to block MR." } ], "affected": [ { "vendor": "GitLab", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "cpes": [ "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*" ], "versions": [ { "version": "16.4", "status": "affected", "lessThan": "16.6.7", "versionType": "semver" }, { "version": "16.7", "status": "affected", "lessThan": "16.7.5", "versionType": "semver" }, { "version": "16.8", "status": "affected", "lessThan": "16.8.2", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-862: Missing Authorization", "cweId": "CWE-862", "type": "CWE" } ] } ], "references": [ { "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435500", "name": "GitLab Issue #435500", "tags": [ "issue-tracking", "permissions-required" ] }, { "url": "https://hackerone.com/reports/2280292", "name": "HackerOne Bug Bounty Report #2280292", "tags": [ "technical-description", "exploit", "permissions-required" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM" } } ], "solutions": [ { "lang": "en", "value": "Upgrade to versions 16.8.2, 16.7.5, 16.6.7 or above." } ], "credits": [ { "lang": "en", "value": "Thanks [js_noob](https://hackerone.com/js_noob) for reporting this vulnerability through our HackerOne bug bounty program", "type": "finder" } ], "providerMetadata": { "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-04-24T04:07:19.586Z" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2024-12-18T17:54:46.828519Z", "id": "CVE-2023-6840", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-12-18T17:55:10.272Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:42:08.148Z" }, "title": "CVE Program Container", "references": [ { "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435500", "name": "GitLab Issue #435500", "tags": [ "issue-tracking", "x_transferred" ] }, { "url": "https://hackerone.com/reports/2280292", "name": "HackerOne Bug Bounty Report #2280292", "tags": [ "technical-description", "exploit", "x_transferred" ] } ] } ] } }