PatchTheCVECVE-2026-35343: The cut utility in uutils coreutils incorrectly handles the -s (only-delimited) option when a newline characte
CVE-2026-35343 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.
The cut utility in uutils coreutils incorrectly handles the -s (only-delimited) option when a newline character is specified as the delimiter. The implementation fails to verify the only_delimited flag in the cut_fields_newline_char_delim function, causing the utility to print non-delimited lines that should have been suppressed. This can lead to unexpected data being passed to downstream scripts that rely on strict output filtering.
Why this priority
- No elevated risk signals yet
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 97%) |
| CISA exploited list | No |
| Weakness | CWE-670 |
| 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-2026-35343?
coreutils: upgrade to 0.7.0. Exact commands for each OS are on this page.
Is CVE-2026-35343 being exploited?
CVE-2026-35343 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-2026-35343 affect?
CVE-2026-35343 affects coreutils. Severity is low (CVSS 3.3). The cut utility in uutils coreutils incorrectly handles the -s (only-delimited) option when a newline character is specified as the delimiter. The implementation fails to verify the only_delimited flag in the cut_fields_newline_char_delim f
How urgent is CVE-2026-35343?
Priority 12/100. No elevated risk signals yet.
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