https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-04T14:08:42.837654+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-79619 CVE-2026-79619 — OpenZFS: user-namespace capability check allows unprivileged local authorization bypass 2026-10-04T14:08:43.823820+00:00

Affected: OpenZFS

On Linux, several OpenZFS ioctl authorization checks accept a capability held only within a user-created, unprivileged namespace as equivalent to real host privilege, allowing an unprivileged local user to perform operations that should require root. Affected operations include pool-administrative operations (eg create, import, destroy), pool event log access (zpool events) and fault injection (zinject). Exploiting the problem requires only that the local user is permitted to open /dev/zfs (governed by local device permissions) and that the kernel permits unprivileged user namespace creation. No prior access to the target pool or its underlying devices is needed.

 https://vulnerability.circl.lu/vuln/usn-8705-1 USN-8705-1 — zfs-linux vulnerability 2026-10-04T14:08:43.823931+00:00

Affected: Ubuntu:22.04:LTS: zfs-linux, Ubuntu:24.04:LTS: zfs-linux, Ubuntu:26.04:LTS: zfs-linux

It was discovered that OpenZFS incorrectly handled authorization checks for certain ioctl operations on Linux. A local attacker could possibly use this issue to perform pool-administrative operations or access privileged information, resulting in an authorization bypass.