CVE-2026-35357
Last modified
CVE-2026-35357 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) later in the process. EPSS estimates a 0.09% chance of exploitation in the next 30 days.
Description
The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) later in the process. A local attacker can race to open the file during this window; once obtained, the file descriptor remains valid and readable even after the permissions are tightened, exposing sensitive or private file contents.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Uutils | Coreutils | All versions |
References
- https://github.com/uutils/coreutils/issues/10011Exploit, Issue Tracking, Vendor Advisory
- https://github.com/uutils/coreutils/issues/10011Exploit, Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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