GHSA-2m8x-mvfx-gwgj

ghsaUSosv

uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition

view advisory published 2026-04-22Licence: CC-BY-4.0

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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-35357US——
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) be…
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