{"schemaVersion":3,"id":"CVE-2026-73802","aliases":["GHSA-x4q3-gcj3-m6cf","GO-2026-6656"],"status":"published","duplicateOf":null,"title":null,"description":"Gitea Runner passes workflow-controlled container options into Docker job container configuration while privileged mode is disabled. Host namespace settings, expanded capabilities, and security profile overrides can remain effective despite Privileged being forced false. A workflow author able to run jobs on an affected Docker-backed runner can use these options to access host namespaces and execute commands as root on the runner host, bypassing the intended container isolation.","dates":{"published":"2026-10-14T14:37:55.141Z","modified":"2026-10-18T13:34:49.826Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Go","score":9.9,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":7.9,"impact":10,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00472,"percentile":0.39522,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-15T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00472,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00472,"percentile":0.39522}],"last30":[{"date":"2026-10-15T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00201,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00472,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00472,"percentile":0.39522}]},"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":[],"exploitCount":0,"weaknesses":[{"id":"CWE-269","name":"Improper Privilege Management","description":"The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/269.html"}],"affected":[{"vendor":"gitea","product":"gitea runner","name":"Gitea Runner","label":"gitea runner","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.0.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.0.0","eol":null,"hubHref":"/vendor/gitea/gitea_runner"},{"vendor":"gitea.com/gitea","product":"runner","name":"gitea.com/gitea/runner","label":"runner","ecosystem":"Go","cpePart":null,"purl":"pkg:golang/gitea.com/gitea/runner","purlType":"golang","versions":[{"text":"< 1.0.9-0.20260731160927-34bfa1915022","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.9-0.20260731160927-34bfa1915022","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-x4q3-gcj3-m6cf","label":"github.com/go-gitea/gitea/security/advisories/GHSA-x4q3-gcj3-m6cf","hostname":"github.com","tags":["WEB","Advisory","Vendor Advisory"]},{"url":"https://gitea.com/gitea/runner/pulls/1058","label":"gitea.com/gitea/runner/pulls/1058","hostname":"gitea.com","tags":["WEB"]},{"url":"https://gitea.com/gitea/runner/releases/tag/v3.0.0","label":"gitea.com/gitea/runner/releases/tag/v3.0.0","hostname":"gitea.com","tags":["WEB","Release Notes"]},{"url":"https://github.com/go-gitea/gitea","label":"github.com/go-gitea/gitea","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://blog.gitea.com/release-of-runner-3.0.0/","label":"blog.gitea.com/release-of-runner-3.0.0/","hostname":"blog.gitea.com","tags":["Release Notes"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-14T14:37:55.141Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-18T13:34:49.826Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":35,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T12:44:25.560Z","stale":false,"partial":false}}