{"id":"DEBIAN-CVE-2026-44973","details":"Billy is an interface filesystem abstraction for Go. Prior to 5.9.0, multiple path traversal issues exist across different components of go-billy. Insufficient path sanitization and boundary enforcement may allow crafted paths (e.g., using ..) to escape intended base directories. While go-billy was not originally designed to provide a strong security boundary, some of these issues were inconsistent across some of the built-in implementations. This results in scenarios where applications relying on go-billy for some level of isolation may inadvertently expose access to unintended filesystem locations. This vulnerability is fixed in 5.9.0.","modified":"2026-08-27T23:06:26.693784291Z","published":"2026-05-28T22:16:59.937Z","upstream":["CVE-2026-44973"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-44973"}],"affected":[{"package":{"name":"golang-github-go-git-go-billy","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-github-go-git-go-billy?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.1-3","5.5.0-1","5.5.0-2","5.8.0-1","5.9.0-1","5.9.1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44973.json"}},{"package":{"name":"golang-github-go-git-go-billy","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-go-git-go-billy?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.0-1","5.5.0-2","5.8.0-1","5.9.0-1","5.9.1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44973.json"}},{"package":{"name":"golang-github-go-git-go-billy","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-go-git-go-billy?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.0-1"}]}],"versions":["5.5.0-1","5.5.0-2","5.8.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44973.json"}},{"package":{"name":"golang-github-go-git-go-billy-v6","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-go-git-go-billy-v6?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.0~alpha.1-1"}]}],"versions":["6~git20260226.45bd095-1","6~git20260226.45bd095-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44973.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}