{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52791","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-08T18:02:19.731Z","datePublished":"2026-07-29T16:14:46.724Z","dateUpdated":"2026-07-29T17:56:43.388Z"},"containers":{"cna":{"title":"fuse-overlayfs release-1.x preserves SUID/SGID bits after truncate/open(O_TRUNC)","problemTypes":[{"descriptions":[{"cweId":"CWE-266","lang":"en","description":"CWE-266: Incorrect Privilege Assignment","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/containers/fuse-overlayfs/security/advisories/GHSA-2cc4-p72c-v85h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/containers/fuse-overlayfs/security/advisories/GHSA-2cc4-p72c-v85h"},{"name":"https://github.com/containers/fuse-overlayfs/commit/97e0d968a782fc259ebde112db1e9b9ff1ad724f","tags":["x_refsource_MISC"],"url":"https://github.com/containers/fuse-overlayfs/commit/97e0d968a782fc259ebde112db1e9b9ff1ad724f"},{"name":"https://github.com/containers/fuse-overlayfs/releases/tag/v1.17","tags":["x_refsource_MISC"],"url":"https://github.com/containers/fuse-overlayfs/releases/tag/v1.17"}],"affected":[{"vendor":"containers","product":"fuse-overlayfs","versions":[{"version":"< 1.17","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-29T16:14:46.724Z"},"descriptions":[{"lang":"en","value":"fuse-overlayfs is an implementation of overlayfs in FUSE for rootless containers. Prior to 1.17, the release-1.x C branch preserves SUID and SGID mode bits in main.c during open(O_TRUNC) and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with mode 4777. This issue is fixed in version 1.17."}],"source":{"advisory":"GHSA-2cc4-p72c-v85h","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/containers/fuse-overlayfs/security/advisories/GHSA-2cc4-p72c-v85h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T17:56:35.819478Z","id":"CVE-2026-52791","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-29T17:56:43.388Z"}}]}}