GitHub Advisoryadvisory · crates.io
GHSA-wq63-vh5h-pr5p uutils coreutils has a UNIX Symbolic Link (Symlink) Following issue
MEDIUM
Official page ↗
- Aliases
- CVE-2026-35372
- Ecosystem
- crates.io
- Packages
- coreutils
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-61
- Reviewed
- 2026-04-30
Affected packages
• crates.io coreutils: < 0.8.0 → fixed in 0.8.0
Description
A logic error in the ln utility of uutils coreutils allows the utility to dereference a symbolic link target even when the --no-dereference (or -n) flag is explicitly provided. The implementation previously only honored the "no-dereference" intent if the --force (overwrite) mode was also enabled. This flaw causes ln to follow a symbolic link that points to a directory and create new links inside that target directory instead of treating the symbolic link itself as the destination. In environments where a privileged user or system script uses ln -n to update a symlink, a local attacker could manipulate existing symbolic links to redirect file creation into sensitive directories, potentially leading to unauthorized file creation or system misconfiguration.
Related
Alias · CVE (1)
- CVE-2026-35372 A logic error in the ln utility of uutils coreutils allows the utility to dereference a symbolic link target even when the --no-dereference… vulnerability
Weakness · CWE (1)
- CWE-61 UNIX Symbolic Link (Symlink) Following weakness