PT-2026-34474 · Unknown · Uutils Coreutils

Zellic · CVE-2026-35338 · Published 2026-04-22 · Updated 2026-07-06

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

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

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

Description A flaw in the chmod utility allows users to bypass the --preserve-root safety mechanism. The implementation validates if the target path is literally '/', but fails to canonicalize the path. This allows the use of path variants such as '/../' or symbolic links to perform destructive recursive operations, such as 'chmod -R 000', on the entire root filesystem, which can result in system-wide permission loss and complete system breakdown.

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

Exploit

Link Following

Path traversal

Weakness Enumeration

CWE-59

CWE-22

Related Identifiers

CVE-2026-35338

GHSA-4C7Q-4928-8445

GHSA-9GQX-53GP-C8G3

Affected Products

Uutils Coreutils

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35338.json · Exploit
• https://github.com/uutils/coreutils/releases/tag/0.6.0 · Vendor Advisory
• https://github.com/uutils/coreutils/pull/10033 · Patch
• https://ubuntu.com/security/CVE-2026-35338 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-35338 · Security Note
• https://osv.dev/vulnerability/GHSA-9gqx-53gp-c8g3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35338 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-35338 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-35338 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-4c7q-4928-8445 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-35338 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-35338 · Vendor Advisory
• https://github.com/uutils/coreutils · Note
• https://github.com/uutils/coreutils/security/advisories/GHSA-4c7q-4928-8445 · Note
• https://github.com/uutils/coreutils/commit/413055b378fa6fe2299c5e5f538c8e6e841ab810 · Note