{"id":"DEBIAN-CVE-2026-87766","details":"A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0.","modified":"2026-09-23T09:00:16.708645194Z","published":"2026-09-09T09:17:12.540Z","upstream":["CVE-2026-87766"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-87766"}],"affected":[{"package":{"name":"bubblewrap","ecosystem":"Debian:12","purl":"pkg:deb/debian/bubblewrap?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.0+30+g0545e72-1","0.10.0-1","0.11.0-1","0.11.0-2","0.11.1-1","0.11.2-1","0.11.2-2","0.12.0+git20260914~bef077c-1","0.12.0-1","0.12.0-1~deb13u1","0.13.0-1","0.8.0-2","0.8.0-2+deb12u1","0.9.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json"}},{"package":{"name":"bubblewrap","ecosystem":"Debian:13","purl":"pkg:deb/debian/bubblewrap?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-1~deb13u1"}]}],"versions":["0.11.0-2","0.11.0-2+deb13u1","0.11.1-1","0.11.2-1","0.11.2-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json"}},{"package":{"name":"bubblewrap","ecosystem":"Debian:14","purl":"pkg:deb/debian/bubblewrap?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.0-1"}]}],"versions":["0.11.0-2","0.11.1-1","0.11.2-1","0.11.2-2","0.12.0-1~deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}