{"id":"DEBIAN-CVE-2026-88265","details":"A flaw was found in crun. After pivot_root, reopening /dev/null for stdio can follow a symlink and attach a host file to container stdio, then change that file's ownership. Affected versions are crun 1.29.1 and earlier. Default configurations that mount a fresh /dev are not exposed. No fixed release is available yet.","modified":"2026-09-16T08:47:32.975624410Z","published":"2026-09-10T09:17:03.523Z","upstream":["CVE-2026-88265"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-88265"}],"affected":[{"package":{"name":"crun","ecosystem":"Debian:12","purl":"pkg:deb/debian/crun?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10-1","1.11-1","1.11.1-1","1.12-1","1.13-1","1.14-1","1.14.1-1","1.14.4-1","1.15-1","1.16-1","1.16.1-1","1.17-1","1.18-1","1.18.1-1","1.18.2-1","1.19.1-1","1.20-1","1.21-1","1.21-2","1.21-3","1.24-1","1.26-1","1.27-1","1.27.1-1","1.28-1","1.8.1-1","1.8.1-1+deb12u1","1.8.5-1","1.8.6-1","1.8.7-1","1.9-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88265.json"}},{"package":{"name":"crun","ecosystem":"Debian:13","purl":"pkg:deb/debian/crun?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.21-1","1.21-2","1.21-3","1.24-1","1.26-1","1.27-1","1.27.1-1","1.28-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88265.json"}},{"package":{"name":"crun","ecosystem":"Debian:14","purl":"pkg:deb/debian/crun?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.21-1","1.21-2","1.21-3","1.24-1","1.26-1","1.27-1","1.27.1-1","1.28-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88265.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N"}]}