CVE-2026-35352
HIGH EPSS 4.3%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
7.0 CVSS 3.1
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
4.3% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-367
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| uutils | coreutils | * | any |
References 4
- openwall.com http://www.openwall.com/lists/oss-security/2026/05/04/4
- openwall.com http://www.openwall.com/lists/oss-security/2026/05/04/5
- openwall.com http://www.openwall.com/lists/oss-security/2026/05/04/6
- github.com https://github.com/uutils/coreutils/issues/10020
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.