PT-2026-34509 · Unknown · Uutils Coreutils

Zellic · Published 2026-04-22 · Updated 2026-05-04 · CVE-2026-35373

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions uutils coreutils (affected versions not specified)

Description A logic error in the ln utility causes the program to reject source paths containing non-UTF-8 filename bytes when using target-directory forms, such as 'ln SOURCE... DIRECTORY'. Unlike GNU ln, which treats filenames as raw bytes, this implementation enforces UTF-8 encoding. This results in a failure to stat the file and a non-zero exit code, which can lead to a local denial of service for automated scripts or system tasks processing valid non-UTF-8 filenames on Unix filesystems.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Weakness Enumeration

CWE-176

Related Identifiers

CVE-2026-35373

GHSA-XH5H-P8C5-4W4X

Affected Products

Uutils Coreutils

References · 11

• 🔥 https://github.com/uutils/coreutils/pull/11403 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-35373 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-35373 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35373 · Security Note
• https://ubuntu.com/security/CVE-2026-35373 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-35373 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-xh5h-p8c5-4w4x · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-35373 · Security Note
• https://github.com/uutils/coreutils · Note
• https://t.me/cveNotify/162084 · Telegram Post
• https://twitter.com/CVEnew/status/2047012080394674637 · Twitter Post