CVE-2026-93786
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
66/100
Published: 2026-09-24
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
None
Description
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.
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 8493da704275ca5ab67fb88c0ae7b71576e91951 |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 4a19bb1c45667f5a5f6eff9cf6648e0f692d046f |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 591acf171644de590cda245fd8595b473a1beb70 |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < 0093909becbda22b62b39b654dbc607faed59cd0 |
| Linux | Linux | f44158485826c076335d6860d35872271a83791d < e148e567a9252643baa125cb65d7ae9c2c6cf68a |
| Linux | Linux | 5.15 |