A logic error in the tr utility of uutils coreutils causes the program to incorrectly define the [:graph:] and [:print:] character classes. The implementation mistakenly includes the ASCII space character (0x20) in the [:graph:] class and excludes it from the [:print:] class, effectively reversing the standard behavior established by POSIX and GNU coreutils. This vulnerability leads to unintended data modification or loss when the utility is used in automated scripts or data-cleaning pipelines that rely on standard character class semantics. For example, a command executed to delete all graphical characters while intending to preserve whitespace will incorrectly delete all ASCII spaces, potentially resulting in data corruption or logic failures in downstream processing.
This page covers CVE-2026-35379 as tracked by Ubuntu, for the package rust-coreutils. No fixed version has been recorded for this distribution yet.
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
UBUNTU-CVE-2026-35379 is classified as CWE-684: Incorrect Provision of Specified Functionality. The code does not function according to its published specifications, potentially leading to incorrect usage.
UBUNTU-CVE-2026-35379 is recorded against 1 package.
Published on 22 April 2026 and last revised on 14 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
rust-coreutils has other advisories on record. If you are patching this one, these are worth checking on the same host:
These advisories are the same class of weakness (CWE-684: Incorrect Provision of Specified Functionality) in other software:
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| rust-coreutils | — | — |
References
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