{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-31133","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2025-03-26T15:04:52.627Z","datePublished":"2025-11-06T18:47:47.335Z","dateUpdated":"2025-11-06T19:22:22.047Z"},"containers":{"cna":{"title":"runc container escape via \"masked path\" abuse due to mount race conditions","problemTypes":[{"descriptions":[{"cweId":"CWE-61","lang":"en","description":"CWE-61: UNIX Symbolic Link (Symlink) Following","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-363","lang":"en","description":"CWE-363: Race Condition Enabling Link Following","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"}}],"references":[{"name":"https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2"},{"name":"https://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522","tags":["x_refsource_MISC"],"url":"https://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522"},{"name":"https://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66","tags":["x_refsource_MISC"],"url":"https://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66"},{"name":"https://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9f","tags":["x_refsource_MISC"],"url":"https://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9f"},{"name":"https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64","tags":["x_refsource_MISC"],"url":"https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64"}],"affected":[{"vendor":"opencontainers","product":"runc","versions":[{"version":"< 1.2.8","status":"affected"},{"version":">= 1.3.0-rc.1, < 1.3.3","status":"affected"},{"version":">= 1.4.0-rc.1, <= 1.4.0-rc.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2025-11-06T18:47:47.335Z"},"descriptions":[{"lang":"en","value":"runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack:  an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3."}],"source":{"advisory":"GHSA-9493-h29p-rfm2","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-11-06T19:03:45.356326Z","id":"CVE-2025-31133","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-11-06T19:22:22.047Z"}}]}}