{"id":"CVE-2026-73802","sourceIdentifier":"88ee5874-cf24-4952-aea0-31affedb7ff2","published":"2026-10-14T15:17:24.670","lastModified":"2026-10-18T14:16:55.830","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"88ee5874-cf24-4952-aea0-31affedb7ff2","affectedData":[{"vendor":"Gitea","product":"Gitea Runner","defaultStatus":"unaffected","packageName":"gitea.com/gitea/runner","versions":[{"version":"0","lessThan":"3.0.0","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-18T13:34:45.738812Z","id":"CVE-2026-73802","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"88ee5874-cf24-4952-aea0-31affedb7ff2","type":"Secondary","description":[{"lang":"en","value":"CWE-269"}]}],"references":[{"url":"https://blog.gitea.com/release-of-runner-3.0.0/","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://gitea.com/gitea/runner/releases/tag/v3.0.0","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"},{"url":"https://github.com/go-gitea/gitea/security/advisories/GHSA-x4q3-gcj3-m6cf","source":"88ee5874-cf24-4952-aea0-31affedb7ff2"}]}