CVE catalog
CVE-2026-35346
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 by
- Severity
- Low · CVSS 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rust-coreutils | sid | 0.12.0-1 | fixed |
| Debian | rust-coreutils | forky | 0.12.0-1 | fixed |
| Debian | rust-coreutils | trixie | 0.0.30-2 | vulnerable |
| Debian | rust-coreutils | bookworm | 0.0.17-2 | vulnerable |
| Cpe | rust-coreutils | Not reported | Not reported | vulnerable |
| Cpe | coreutils | Not reported | 0.6.0 | fixed |
| Ubuntu | rust-coreutils | 24.04 | 0.0.20-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.22-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.23-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.23-2 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.23-3 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.24-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.24-2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.0.30-1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.0.30-2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.0.30-2ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu3 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu4 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250801.cf79675-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu4 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu6 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu7 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.2.2-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.2.2-0ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.2.2-0ubuntu2.1 | vulnerable |
| Cpe | coreutils | Not reported | 0.6.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rust-coreutils | source | sid | 0.6.0-1 | not yet assigned | Not reported | Not reported |
| Debian | rust-coreutils | source | forky | 0.6.0-1 | not yet assigned | Not reported | Not reported |
| Debian | rust-coreutils | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | rust-coreutils | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | coreutils | cpe | Not reported | 0.6.0 | Not reported | Not reported | Not reported |
| Cpe | coreutils | cpe | Not reported | 0.6.0 | Not reported | NVD-CVE-2026-35346 | Not reported |
Notes
[trixie] rust-coreutils: Minor issue [bookworm] rust-coreutils: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [rust-coreutils]Affected
Details (2)
0.0.17-2· amd64 · bookwormAffected
nvd · rust-coreutils · debian · bookworm; nvd · rust-coreutils · debian · 12
0.0.17-2· arm64 · bookwormAffected
nvd · rust-coreutils · debian · bookworm; nvd · rust-coreutils · debian · 12
[Debian 13 (Trixie)]
- [rust-coreutils]Affected
Details (2)
0.0.30-2· amd64 · trixieAffected
nvd · rust-coreutils · debian · 13
0.0.30-2· arm64 · trixieAffected
nvd · rust-coreutils · debian · 13
Observed:
References
- [https://github.com/uutils/coreutils/issues/10192]
- [https://github.com/uutils/coreutils/pull/10206]
- [https://github.com/uutils/coreutils/releases/tag/0.6.0]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-35346]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-35346]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-35346]
- [https://security-tracker.debian.org/tracker/CVE-2026-35346]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35346.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]