MajorCritical vulnerability
CVE-2026-93786 (CVSS 8.1)
NVD · officialPublished Sep 24, 2026Risk 37/100
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.
Technical details
CVSS
8.1
AV:NetworkAC:LowPR:LowUI:NoneC:HighI:HighA:None
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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