CVE-2026-35352
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
29/100
Published: 2026-04-22
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link between these two operations. This redirects the chmod call to an arbitrary file, potentially enabling privilege escalation if the utility is run with elevated privileges.
Weakness Classification (1)
References & Advisories (4)
Exploit
Issue Tracking
Vendor Advisory