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.
References
| Link | Resource |
|---|---|
| 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 |
Configurations
History
27 Apr 2026, 12:28
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:* | |
| First Time |
Uutils
Uutils coreutils |
|
| References | () https://github.com/uutils/coreutils/issues/10192 - Exploit, Issue Tracking, Vendor Advisory | |
| References | () https://github.com/uutils/coreutils/pull/10206 - Issue Tracking, Patch | |
| References | () https://github.com/uutils/coreutils/releases/tag/0.6.0 - Release Notes |
22 Apr 2026, 19:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/uutils/coreutils/issues/10192 - |
22 Apr 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-22 17:16
Updated : 2026-04-27 12:28
NVD link : CVE-2026-35346
Mitre link : CVE-2026-35346
CVE.ORG link : CVE-2026-35346
JSON object : View
Products Affected
uutils
- coreutils
CWE
CWE-176
Improper Handling of Unicode Encoding