CVE-2026-93786
In the Linux kernel, the following vulnerability has been resolved: ksmbd: preserve VFS inherited POSIX ACL mask The VFS initializes a child's POSIX ACL from the parent's default ACL and the requested creation mode. Do not mutate the parent ACL or overwrite the child's VFS-computed access and default ACLs afterwards. This preserves restrictive ACL_MASK entries and prevents SMB object creation from widening effective permissions.
- Published Sep 24, 2026
- CVSS 8.1 high
- 0.3% chance of exploitation in the next 30 days (EPSS)
- A fix is available