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Hat","versions":[]}],"cveId":"CVE-2026-79705","cwes":["CWE-22"],"description":"A flaw was found in the buildah/copier Go package. When used outside of Buildah by a non-root caller, a crafted tar archive containing malicious symlinks can escape the target extraction directory and create files outside the intended destination. Buildah itself uses chroot hardening and is not affected.","epss":{"date":"2026-11-05","percentile":0.35246,"score":0.00408},"exploits":[],"kev":null,"metrics":[{"score":4.5,"severity":"medium","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N","version":"3.1"}],"modifiedAt":1793926501018,"publishedAt":1789489406652,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:74861"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-79705"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2523419"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"To mitigate this issue, users should ensure that `podman cp` operations are only performed against trusted Podman system service servers. Copying content from untrusted sources may expose the client to directory traversal vulnerabilities."}],"revision":"5656b8f5a40a965d34e423a7dcbc3a08cfdefcc0d916acaf5ed243794b34bc59","sources":[{"modifiedAt":1793926501018,"name":"CNA: redhat","retrievedAt":1793927328761,"url":"https://www.cve.org/CVERecord?id=CVE-2026-79705"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793927339558,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-79705"}],"ssvc":{"assessedAt":1789493289238,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Podman: buildah: buildah/copier: directory escape via crafted tar symlinks when used outside buildah by non-root callers","updatedAt":1793927339558}