CVE-2023-6736

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-6736", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "state": "PUBLISHED", "assignerShortName": "GitLab", "dateReserved": "2023-12-12T15:30:44.097Z", "datePublished": "2024-02-07T22:02:30.947Z", "dateUpdated": "2026-04-24T04:07:14.453Z"}, "containers": {"cna": {"title": "Inefficient Regular Expression Complexity in GitLab", "descriptions": [{"lang": "en", "value": "An issue has been discovered in GitLab EE affecting all versions starting from 11.3 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted content in the CODEOWNERS file."}], "affected": [{"vendor": "GitLab", "product": "GitLab", "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "versions": [{"version": "11.3", "status": "affected", "lessThan": "16.7.6", "versionType": "semver"}, {"version": "16.8", "status": "affected", "lessThan": "16.8.3", "versionType": "semver"}, {"version": "16.9", "status": "affected", "lessThan": "16.9.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-1333: Inefficient Regular Expression Complexity", "cweId": "CWE-1333", "type": "CWE"}]}], "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435036", "name": "GitLab Issue #435036", "tags": ["issue-tracking", "permissions-required"]}, {"url": "https://hackerone.com/reports/2269023", "name": "HackerOne Bug Bounty Report #2269023", "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:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "solutions": [{"lang": "en", "value": "Upgrade to versions 16.9.1, 16.8.3, 16.7.6 or above."}], "credits": [{"lang": "en", "value": "Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program", "type": "finder"}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-04-24T04:07:14.453Z"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6736", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-08T17:28:36.837955Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:20:46.176Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:15.057Z"}, "title": "CVE Program Container", "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435036", "name": "GitLab Issue #435036", "tags": ["issue-tracking", "x_transferred"]}, {"url": "https://hackerone.com/reports/2269023", "name": "HackerOne Bug Bounty Report #2269023", "tags": ["technical-description", "exploit", "x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435036", "name": "GitLab Issue #435036", "tags": ["issue-tracking", "x_transferred"]}, {"url": "https://hackerone.com/reports/2269023", "name": "HackerOne Bug Bounty Report #2269023", "tags": ["technical-description", "exploit", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:15.057Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-6736", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-08T17:28:36.837955Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T15:20:36.698Z"}}], "cna": {"title": "Inefficient Regular Expression Complexity in GitLab", "credits": [{"lang": "en", "type": "finder", "value": "Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"], "repo": "git://git@gitlab.com:gitlab-org/gitlab.git", "vendor": "GitLab", "product": "GitLab", "versions": [{"status": "affected", "version": "11.3", "lessThan": "16.7.6", "versionType": "semver"}, {"status": "affected", "version": "16.8", "lessThan": "16.8.3", "versionType": "semver"}, {"status": "affected", "version": "16.9", "lessThan": "16.9.1", "versionType": "semver"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Upgrade to versions 16.9.1, 16.8.3, 16.7.6 or above."}], "references": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435036", "name": "GitLab Issue #435036", "tags": ["issue-tracking", "permissions-required"]}, {"url": "https://hackerone.com/reports/2269023", "name": "HackerOne Bug Bounty Report #2269023", "tags": ["technical-description", "exploit", "permissions-required"]}], "descriptions": [{"lang": "en", "value": "An issue has been discovered in GitLab EE affecting all versions starting from 11.3 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted content in the CODEOWNERS file."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1333", "description": "CWE-1333: Inefficient Regular Expression Complexity"}]}], "providerMetadata": {"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "shortName": "GitLab", "dateUpdated": "2026-04-24T04:07:14.453Z"}}}, "cveMetadata": {"cveId": "CVE-2023-6736", "state": "PUBLISHED", "dateUpdated": "2026-04-24T04:07:14.453Z", "dateReserved": "2023-12-12T15:30:44.097Z", "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a", "datePublished": "2024-02-07T22:02:30.947Z", "assignerShortName": "GitLab"}, "dataVersion": "5.2"}

{"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": "16.7.6", "status": "affected", "version": "11.3", "versionType": "semver"}, {"lessThan": "16.8.3", "status": "affected", "version": "16.8", "versionType": "semver"}, {"lessThan": "16.9.1", "status": "affected", "version": "16.9", "versionType": "semver"}]}], "source": "cve@gitlab.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "0A393A71-3927-44F2-B9C6-7E33534F72C7", "versionEndExcluding": "16.7.6", "versionStartIncluding": "11.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "1920E538-FE0D-40A6-8EA3-667D9835DA8E", "versionEndExcluding": "16.8.3", "versionStartIncluding": "16.8.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gitlab:gitlab:16.9.0:*:*:*:enterprise:*:*:*", "matchCriteriaId": "1E374890-90FC-4DC5-8C0B-87CC99B4A4D7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue has been discovered in GitLab EE affecting all versions starting from 11.3 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted content in the CODEOWNERS file."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en GitLab EE que afecta a todas las versiones desde 11.3 anteriores a 16.6.7, todas las versiones desde 16.7 anteriores a 16.7.5, todas las versiones desde 16.8 anteriores a 16.8.2. Era posible que un atacante provocara una denegaci\u00f3n de servicio del lado del cliente utilizando contenido manipulado maliciosamente en el archivo CODEOWNERS."}], "id": "CVE-2023-6736", "lastModified": "2026-06-17T06:51:19.627", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "cve@gitlab.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-6736", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-02-08T17:28:36.837955Z", "version": "2.0.3"}}]}, "published": "2024-02-07T22:15:09.043", "references": [{"source": "cve@gitlab.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435036"}, {"source": "cve@gitlab.com", "tags": ["Permissions Required", "Technical Description"], "url": "https://hackerone.com/reports/2269023"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/435036"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required", "Technical Description"], "url": "https://hackerone.com/reports/2269023"}], "sourceIdentifier": "cve@gitlab.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "cve@gitlab.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-1333"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}