{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89091","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-09-10T20:17:42.169Z","datePublished":"2026-10-08T21:49:30.953Z","dateUpdated":"2026-10-09T15:13:02.773Z"},"containers":{"cna":{"title":"Ansible-core: ansible-core: ansible-galaxy collection install symlink path escape allows arbitrary file write / code execution","metrics":[{"other":{"content":{"value":"Important","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"A flaw was found in ansible-core. When installing a collection with\n`ansible-galaxy collection install`, the archive extractor validates member\npaths using lexical path normalisation (os.path.abspath) instead of resolving\nsymbolic links (os.path.realpath), and it performs no containment check on\nsymlink-typed directory members before creating them. A crafted collection\ntarball can chain symlink directory entries so that a subsequent file member is\nwritten outside the intended destination directory. This allows an attacker who\ncan get a victim to install a malicious collection to overwrite arbitrary files\nwith the privileges of the user running ansible-galaxy, leading to code\nexecution on the control node. This is a bypass of the fix for CVE-2020-10691."}],"affected":[{"vendor":"Red Hat","product":"Migration Toolkit for Applications 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"mta/mta-rhel9-operator","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:migration_toolkit_applications:8"]},{"vendor":"Red Hat","product":"Migration Toolkit for Virtualization","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"migration-toolkit-virtualization/mtv-rhel9-operator","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:migration_toolkit_virtualization:2"]},{"vendor":"Red Hat","product":"OpenShift Service Mesh 3","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"openshift-service-mesh/kiali-rhel9-operator","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:service_mesh:3"]},{"vendor":"Red Hat","product":"Red Hat Advanced Cluster Management for Kubernetes 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