CVE-2023-5226

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-5226", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2023-09-27T13:01:23.089Z", "datePublished": "2023-12-01T07:01:43.131Z", "dateUpdated": "2026-08-14T04:13:26.916Z"}, "containers": {"cna": {"title": "Improper Control of Generation of Code ('Code Injection') in GitLab", "descriptions": [{"lang": "en", "value": "An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI."}], "affected": [{"vendor": "GitLab", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "versions": [{"version": "0", "status": "affected", "lessThan": "16.4.3", "versionType": "semver"}, {"version": "16.5", "status": "affected", "lessThan": "16.5.3", "versionType": "semver"}, {"version": "16.6", "status": "affected", "lessThan": "16.6.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "cweId": "CWE-94", "type": "CWE"}]}], "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/426400", "name": "GitLab Issue #426400", "tags": ["issue-tracking"]}, {"url": "https://hackerone.com/reports/2173053", "name": "HackerOne Bug Bounty Report #2173053", "tags": ["technical-description", "exploit", "permissions-required", "broken-link"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}], "solutions": [{"lang": "en", "value": "Upgrade to versions 16.4.3, 16.5.3, 16.6.1 or above."}], "credits": [{"lang": "en", "value": "Thanks [shells3c](https://hackerone.com/shells3c) for reporting this vulnerability through our HackerOne bug bounty program", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-08-14T04:13:26.916Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:52:08.425Z"}, "title": "CVE Program Container", "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/426400", "name": "GitLab Issue #426400", "tags": ["issue-tracking", "x_transferred"]}, {"url": "https://hackerone.com/reports/2173053", "name": "HackerOne Bug Bounty Report #2173053", "tags": ["technical-description", "exploit", "x_transferred"]}]}]}}

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{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "vendor": "GitLab", "versions": [{"lessThan": "16.4.3", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "16.5.3", "status": "affected", "version": "16.5", "versionType": "semver"}, {"lessThan": "16.6.1", "status": "affected", "version": "16.6", "versionType": "semver"}]}], "source": "cve@gitlab.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "7269551A-80EB-4E8B-8022-0B66994C7601", "versionEndExcluding": "16.4.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "B9CF956D-DF30-47A7-8710-262AC4C76F2E", "versionEndExcluding": "16.4.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "matchCriteriaId": "B1AC7763-4EA9-4E9A-8711-FEEA9D111D68", "versionEndExcluding": "16.5.3", "versionStartIncluding": "16.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "6B77E904-2562-4F78-A787-7F51871054BA", "versionEndExcluding": "16.5.3", "versionStartIncluding": "16.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:community:*:*:*", "matchCriteriaId": "FAB408DE-FE19-4CD6-B026-44AF7AD36405", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:16.6.0:*:*:*:enterprise:*:*:*", "matchCriteriaId": "8D5674D6-E26B-4F62-9B59-C15DEEDDB4B1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI."}, {"lang": "es", "value": "Se ha descubierto un problema en GitLab que afecta a todas las versiones anteriores a 16.4.3, todas las versiones a partir de 16.5 anteriores a 16.5.3, todas las versiones a partir de 16.6 anteriores a 16.6.1. En determinadas circunstancias, un actor malintencionado elude las comprobaciones de sucursales prohibidas utilizando un nombre de sucursal especialmente manipulado para manipular el contenido del repositorio en la interfaz de usuario."}], "id": "CVE-2023-5226", "lastModified": "2026-06-17T06:48:07.420", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.6, "source": "cve@gitlab.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-12-01T07:15:12.003", "references": [{"source": "cve@gitlab.com", "tags": ["Broken Link", "Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/426400"}, {"source": "cve@gitlab.com", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://hackerone.com/reports/2173053"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/426400"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://hackerone.com/reports/2173053"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "cve@gitlab.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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