{"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"}}]}}

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{"affected": [{"affectedData": [{"product": "guest-components", "vendor": "confidential-containers", "versions": [{"status": "affected", "version": ">= 0.16.0, < 0.20.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-47699", "lastModified": "2026-08-21T20:16:35.470", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47699", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-21T19:17:03.503833Z", "version": "2.0.3"}}]}, "published": "2026-08-18T22:16:52.127", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/confidential-containers/guest-components/commit/14fbb711af0b29bb9cad307969d57b0de9b85d7f"}, {"source": "security-advisories@github.com", "url": "https://github.com/confidential-containers/guest-components/commit/7cc1bc458973310296e58aedbb15cb7963297bbe"}, {"source": "security-advisories@github.com", "url": "https://github.com/confidential-containers/guest-components/pull/1440"}, {"source": "security-advisories@github.com", "url": "https://github.com/confidential-containers/guest-components/pull/1457"}, {"source": "security-advisories@github.com", "url": "https://github.com/confidential-containers/guest-components/releases/tag/v0.20.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/confidential-containers/guest-components/security/advisories/GHSA-84rc-2q4r-45pc"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-59"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.16.0,0.20.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "guest-components", "source": "cna", "vendor": "confidential-containers"}, "product": "guest-components", "vendor": "confidential-containers"}], "created": "2026-08-18T23:00:14.598760+00:00", "updated": "2026-08-21T12:31:49.035760+00:00", "vendors": ["confidential-containers", "confidential-containers$PRODUCT$guest-components"]}