{"id":"CVE-2026-30892","state":"PUBLISHED","title":"Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation","description":"crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the  `crun exec` option `-u` (`--user`) is incorrectly parsed. The value `1` is interpreted as UID 0 and GID 0 when it should have been UID 1 and  GID 0. The process thus runs with higher privileges than expected. Version 1.27 patches the issue.","publishedAt":"2026-03-25T23:57:01.741Z","updatedAt":"2026-03-26T18:10:16.318Z","severity":{"score":0,"label":"None","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["containers crun"],"affected":[{"vendor":"containers","product":"crun","versions":[{"version":">= 1.19, < 1.27","status":"affected"}]}],"references":["https://github.com/containers/crun/security/advisories/GHSA-4vg2-xjqj-7chj","https://github.com/containers/crun/commit/1bd7f42446999b0e76bc3d575392e05c943b0b01","https://github.com/containers/crun/releases/tag/1.27"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/30xxx/CVE-2026-30892.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-30892","state":"PUBLISHED","datePublished":"2026-03-25T23:57:01.741Z","dateUpdated":"2026-03-26T18:10:16.318Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-06T00:04:56.701Z"},"containers":{"cna":{"title":"Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation","descriptions":[{"lang":"en","value":"crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the  `crun exec` option `-u` (`--user`) is incorrectly parsed. The value `1` is interpreted as UID 0 and GID 0 when it should have been UID 1 and  GID 0. The process thus runs with higher privileges than expected. Version 1.27 patches the issue."}],"affected":[{"vendor":"containers","product":"crun","versions":[{"version":">= 1.19, < 1.27","status":"affected"}]}],"references":[{"url":"https://github.com/containers/crun/security/advisories/GHSA-4vg2-xjqj-7chj","name":"https://github.com/containers/crun/security/advisories/GHSA-4vg2-xjqj-7chj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/containers/crun/commit/1bd7f42446999b0e76bc3d575392e05c943b0b01","name":"https://github.com/containers/crun/commit/1bd7f42446999b0e76bc3d575392e05c943b0b01","tags":["x_refsource_MISC"]},{"url":"https://github.com/containers/crun/releases/tag/1.27","name":"https://github.com/containers/crun/releases/tag/1.27","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":0,"baseSeverity":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"CWE-269: Improper Privilege Management","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-25T23:57:01.741Z"},"source":{"advisory":"GHSA-4vg2-xjqj-7chj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-26T18:09:51.829145Z","id":"CVE-2026-30892","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-26T18:10:16.318Z"}}]}}}