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GHSA-2m8x-mvfx-gwgj

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

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-35357

Packages

EcosystemPackageAffectedFixed in
crates.io coreutils <= 0.8.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.