{"affected":[{"affectedData":[{"product":"GitLab","vendor":"GitLab","versions":[{"status":"affected","version":">=8.7, <15.10.8"},{"status":"affected","version":">=15.11, <15.11.7"},{"status":"affected","version":">=16.0, <16.0.2"}]}],"source":"cve@gitlab.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","matchCriteriaId":"87236166-9FB8-4766-AB87-AA4F6AEB8EE6","versionEndExcluding":"15.10.8","versionStartIncluding":"8.7.0","vulnerable":true},{"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","matchCriteriaId":"79D863F6-D709-4F8F-A078-EB1D3AB14F1D","versionEndExcluding":"15.10.8","versionStartIncluding":"8.7.0","vulnerable":true},{"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","matchCriteriaId":"C612DD9C-BFBD-49A3-9936-BB7D2C7ADBED","versionEndExcluding":"15.11.7","versionStartIncluding":"15.11.0","vulnerable":true},{"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","matchCriteriaId":"A6944880-86FD-4D58-8217-667BD48B019A","versionEndExcluding":"15.11.7","versionStartIncluding":"15.11.0","vulnerable":true},{"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*","matchCriteriaId":"C060C573-5005-487A-8AB2-DE66531685A1","versionEndExcluding":"16.0.2","versionStartIncluding":"16.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*","matchCriteriaId":"D19BAB29-C57C-4410-A093-44AFFF3984DF","versionEndExcluding":"16.0.2","versionStartIncluding":"16.0.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.7 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint."}],"id":"CVE-2023-2198","lastModified":"2026-06-17T05:51:58.353","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"cve@gitlab.com","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"nvd@nist.gov","type":"Primary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2023-2198","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-01-07T16:46:50.392119Z","version":"2.0.3"}}]},"published":"2023-06-07T17:15:10.150","references":[{"source":"cve@gitlab.com","tags":["Vendor Advisory"],"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-2198.json"},{"source":"cve@gitlab.com","tags":["Broken Link"],"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/408273"},{"source":"cve@gitlab.com","tags":["Permissions Required","Third Party Advisory"],"url":"https://hackerone.com/reports/1947187"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-2198.json"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Broken Link"],"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/408273"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Permissions Required","Third Party Advisory"],"url":"https://hackerone.com/reports/1947187"},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Broken Link"],"url":"https://gitlab.com/gitlab-org/gitlab/-/issues/408273"}],"sourceIdentifier":"cve@gitlab.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-1333"}],"source":"nvd@nist.gov","type":"Primary"},{"description":[{"lang":"en","value":"CWE-1333"}],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}]}