{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-47699","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-05-19T21:18:20.404Z","datePublished":"2026-08-18T21:24:54.280Z","dateUpdated":"2026-08-21T19:17:19.410Z"},"containers":{"cna":{"title":"Confidential Containers Guest Components image-rs: zip-slip-class arbitrary file write via absolute entry path in hardlink fallback","problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-59","lang":"en","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/confidential-containers/guest-components/security/advisories/GHSA-84rc-2q4r-45pc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/confidential-containers/guest-components/security/advisories/GHSA-84rc-2q4r-45pc"},{"name":"https://github.com/confidential-containers/guest-components/pull/1440","tags":["x_refsource_MISC"],"url":"https://github.com/confidential-containers/guest-components/pull/1440"},{"name":"https://github.com/confidential-containers/guest-components/pull/1457","tags":["x_refsource_MISC"],"url":"https://github.com/confidential-containers/guest-components/pull/1457"},{"name":"https://github.com/confidential-containers/guest-components/commit/14fbb711af0b29bb9cad307969d57b0de9b85d7f","tags":["x_refsource_MISC"],"url":"https://github.com/confidential-containers/guest-components/commit/14fbb711af0b29bb9cad307969d57b0de9b85d7f"},{"name":"https://github.com/confidential-containers/guest-components/commit/7cc1bc458973310296e58aedbb15cb7963297bbe","tags":["x_refsource_MISC"],"url":"https://github.com/confidential-containers/guest-components/commit/7cc1bc458973310296e58aedbb15cb7963297bbe"},{"name":"https://github.com/confidential-containers/guest-components/releases/tag/v0.20.0","tags":["x_refsource_MISC"],"url":"https://github.com/confidential-containers/guest-components/releases/tag/v0.20.0"}],"affected":[{"vendor":"confidential-containers","product":"guest-components","versions":[{"version":">= 0.16.0, < 0.20.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-18T21:24:54.280Z"},"descriptions":[{"lang":"en","value":"Confidential Containers Guest Components provides guest tools and components for confidential container workloads. From 0.16.0 until 0.20.0, a crafted OCI image layer can make image_rs::stream::unpack::unpack() create a hardlink outside its destination directory. In image-rs/src/stream/unpack.rs, try_hardlink_fallback() validates the hardlink source but computes the destination with destination.join(&entry_rel). Rust Path::join replaces the base when entry_rel is an absolute tar entry path, so fs::hard_link(&src_canon, &dst_entry_abs) can write attacker-controlled content to an arbitrary absolute path. In Confidential Containers the workload owner already controls trusted image content, so the issue is a workload-owner escape into the pod virtual machine rather than a crossing of the image trust boundary, but it may enable access to pod virtual machine capabilities and attestation abuse. This issue is fixed in version 0.20.0."}],"source":{"advisory":"GHSA-84rc-2q4r-45pc","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T19:17:03.503833Z","id":"CVE-2026-47699","options":[{"Exploitation":"none"},{"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":"2026-08-21T19:17:19.410Z"}}]}}