CVE-2026-35357
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.
- CVSS 3.1
- 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.09% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-26)
- CWE
- CWE-367
- Published
- Modified
- Record from
- the NVD, synced
Affected
- uutils:coreutils
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-2m8x-mvfx-gwgj | crates.io | coreutils | <=0.8.0 | no fix published |