PatchTheCVECVE-2026-35379: A logic error in the tr utility of uutils coreutils causes the program to incorrectly define the [:graph:] and
CVE-2026-35379 is a low-severity flaw (CVSS 3.3) affecting coreutils. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 3.3 (Low) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 96%) |
| CISA exploited list | No |
| Weakness | CWE-684 |
| Published | 2026-04-22 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-35379?
coreutils: upgrade to 0.8.0. Exact commands for each OS are on this page.
Is CVE-2026-35379 being exploited?
CVE-2026-35379 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-35379 affect?
CVE-2026-35379 affects coreutils. Severity is low (CVSS 3.3). 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 e
How urgent is CVE-2026-35379?
Priority 18/100. Public exploit reference
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