{"id":"DEBIAN-CVE-2026-79705","details":"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.","modified":"2026-09-17T08:47:27.677175714Z","published":"2026-09-15T17:17:27.313Z","upstream":["CVE-2026-79705"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-79705"}],"affected":[{"package":{"name":"golang-github-containers-buildah","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-github-containers-buildah?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.28.2+ds1-3","1.28.2+ds1-3+deb12u1","1.29.0+ds1-1","1.30.0+ds1-1","1.30.0+ds1-2","1.30.0+ds1-3","1.31.2+ds1-1","1.31.2+ds1-2","1.31.2+ds1-3","1.32.0+ds1-1","1.32.0+ds1-2","1.32.2+ds1-1","1.33.1+ds1-1","1.33.1+ds1-2","1.33.3+ds1-1","1.33.3+ds1-2","1.33.5+ds1-3","1.33.5+ds1-4","1.33.7+ds1-1","1.34.0+ds1-1","1.34.0+ds1-2","1.35.3+ds1-1","1.35.3+ds1-2","1.35.3+ds1-3","1.37.0+ds1-1","1.37.1+ds1-1","1.37.1+ds1-2","1.37.2+ds1-1","1.37.2+ds1-2","1.37.2+ds1-3","1.37.3+ds1-1","1.37.3+ds1-2","1.37.3+ds1-3","1.37.4+ds1-1","1.37.5+ds1-1","1.38.0+ds1-1","1.38.0+ds1-2","1.38.1+ds1-1","1.39.0+ds1-1","1.39.3+ds1-1","1.41.4+ds1-1","1.41.4+ds1-2","1.41.4+ds1-3","1.41.5+ds1-1","1.41.5+ds1-2","1.41.5+ds1-3","1.41.5+ds1-4","1.42.1+ds1-1","1.42.1+ds1-2","1.43.0+ds1-1","1.43.0+ds1-2","1.43.1+ds1-1","1.43.1+ds1-2","1.43.1+ds1-3","1.43.2+ds1-1","1.43.2+ds1-2","1.43.2+ds1-3","1.45.0+ds1-1","1.45.0+ds1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79705.json"}},{"package":{"name":"golang-github-containers-buildah","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-containers-buildah?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.39.3+ds1-1","1.41.4+ds1-1","1.41.4+ds1-2","1.41.4+ds1-3","1.41.5+ds1-1","1.41.5+ds1-2","1.41.5+ds1-3","1.41.5+ds1-4","1.42.1+ds1-1","1.42.1+ds1-2","1.43.0+ds1-1","1.43.0+ds1-2","1.43.1+ds1-1","1.43.1+ds1-2","1.43.1+ds1-3","1.43.2+ds1-1","1.43.2+ds1-2","1.43.2+ds1-3","1.45.0+ds1-1","1.45.0+ds1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79705.json"}},{"package":{"name":"golang-github-containers-buildah","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-containers-buildah?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.39.3+ds1-1","1.41.4+ds1-1","1.41.4+ds1-2","1.41.4+ds1-3","1.41.5+ds1-1","1.41.5+ds1-2","1.41.5+ds1-3","1.41.5+ds1-4","1.42.1+ds1-1","1.42.1+ds1-2","1.43.0+ds1-1","1.43.0+ds1-2","1.43.1+ds1-1","1.43.1+ds1-2","1.43.1+ds1-3","1.43.2+ds1-1","1.43.2+ds1-2","1.43.2+ds1-3","1.45.0+ds1-1","1.45.0+ds1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-79705.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N"}]}