{"schemaVersion":3,"id":"CVE-2026-110264","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.","dates":{"published":"2026-10-22T00:33:48.179Z","modified":"2026-10-22T00:33:48.179Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":10,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":10,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_15541CB7C9B47D73","name":"Exploit Reference (hackerone.com)","source":"reference","url":"https://hackerone.com/reports/4093475","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-190","name":"Integer Overflow or Wraparound","description":"The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative number.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/190.html"}],"affected":[{"vendor":"gitlab","product":"gitlab","name":"GitLab","label":"gitlab","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.0, < 18.11.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 19.0, < 19.0.10","noFixRecorded":false,"fixedIn":null},{"text":"≥ 19.1, < 19.1.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 19.2, < 19.2.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 19.3, < 19.3.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 19.4, < 19.4.3","noFixRecorded":false,"fixedIn":null},{"text":"≥ 19.5, < 19.5.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.0, < 18.11.13 | ≥ 19.0, < 19.0.10 | ≥ 19.1, < 19.1.9 | ≥ 19.2, < 19.2.9 | ≥ 19.3, < 19.3.6 | ≥ 19.4, < 19.4.3 | ≥ 19.5, < 19.5.1","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"gitlab","label":"GitLab","category":"server-app"}},"hubHref":"/vendor/gitlab/gitlab"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/633633","label":"gitlab.com/gitlab-org/gitlab/-/work_items/633633","hostname":"gitlab.com","tags":[]},{"url":"https://hackerone.com/reports/4093475","label":"hackerone.com/reports/4093475","hostname":"hackerone.com","tags":["Technical Description","Exploit","Permissions Required"]},{"url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/","label":"docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/","hostname":"docs.gitlab.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-22T00:33:48.179Z","label":"Published","detail":"Vulnerability first disclosed.","source":null}],"risk":{"score":90,"level":"critical","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T10:24:32.208Z","stale":false,"partial":false}}