A logic error in the ln utility of uutils coreutils causes the program to reject source paths containing non-UTF-8 filename bytes when using target-directory forms (e.g., ln SOURCE... DIRECTORY). While GNU ln treats filenames as raw bytes and creates the links correctly, the uutils implementation enforces UTF-8 encoding, resulting in a failure to stat the file and a non-zero exit code. In environments where automated scripts or system tasks process valid but non-UTF-8 filenames common on Unix filesystems, this divergence causes the utility to fail, leading to a local denial of service for those specific operations.
{
"cwe_ids": [
"CWE-176"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-30T18:00:21Z",
"nvd_published_at": "2026-04-22T17:16:41Z",
"severity": "LOW"
}