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Medium · 5.5 CVE-2026-35339 EUVD-2026-24965GHSA-4x34-chg5-mwjjGHSA-vp6q-mv9j-j428

uutils coreutils chmod False Success Exit Code in Recursive Mode

Published Apr 22, 2026 · Updated Apr 22, 2026 · Assigned by canonical

Description

The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as 'Operation not permitted'. Scripts relying on these exit codes may proceed under a false sense of success while sensitive files remain with restrictive or incorrect permissions.

Affected products

VendorProductAffectedFixed
Uutils coreutils < 0.6.0 0.6.0

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 rust-coreutils 0.6.0-1 —
Debian 13 rust-coreutils No fix yet —
Debian 12 rust-coreutils No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 25.10 rust-coreutils No fix yet —
Ubuntu 24.04 LTS rust-coreutils No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
crates.io uu_chmod < 0.6.0 0.6.0 GHSA-4x34-chg5-mwjj

References