CVEvulnerability
CVE-2026-35346
3.3 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-22
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-176
Description
The comm utility in uutils coreutils silently corrupts data by performing lossy UTF-8 conversion on all output lines. The implementation uses String::from_utf8_lossy(), which replaces invalid UTF-8 byte sequences with the Unicode replacement character (U+FFFD). This behavior differs from GNU comm, which processes raw bytes and preserves the original input. This results in corrupted output when the utility is used to compare binary files or files using non-UTF-8 legacy encodings.
Affected configurations
• uutils coreutils (< 0.6.0)
Related
Weakness · CWE (1)
- CWE-176 Improper Handling of Unicode Encoding weakness
References
- https://github.com/uutils/coreutils/issues/10192 Exploit, Issue Tracking, Vendor Advisory
- https://github.com/uutils/coreutils/pull/10206 Issue Tracking, Patch
- https://github.com/uutils/coreutils/releases/tag/0.6.0 Release Notes
- https://github.com/uutils/coreutils/issues/10192 Exploit, Issue Tracking, Vendor Advisory