CVE-2026-35380: uutils coreutils has an Improper Input Validation Issue in its cut Utility
Affects coreutilsSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium : upgrade to 0.8.0 when convenient.
Data as of 27 Oct 2026, 00:27 UTC
- Patch
- Available – fixed in 0.8.0
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade coreutils to 0.8.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| crates.iocoreutils | Affected
| Fixed in
|
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AI-suggested
Upgrade uutils coreutils to version 0.8.0 or later where this issue is fixed. Since a patch is available, applying the official fix eliminates the vulnerability. No other mitigation is indicated.
Description
CVE-2026-35380 is a logic error vulnerability in the cut utility of uutils coreutils prior to version 0.8.0. The utility incorrectly treats the two-byte string of two single quotes ('') as an empty delimiter, mapping it to the NUL character for both the -d and --output-delimiter options. This can cause silent data corruption or logic errors in automated scripts and data pipelines that rely on literal delimiters, as the utility may split or join data on NUL bytes instead of the intended characters. The issue is fixed in version 0.8.0.
References
- nvd.nist.gov/vuln/detail/CVE-2026-35380 (opens in a new tab)
- github.com/uutils/coreutils/pull/11399 (opens in a new tab)
- github.com/uutils/coreutils/commit/593f5b191e8b9c87e4292955999c2d0b5cbcce69 (opens in a new tab)
- github.com/uutils/coreutils (opens in a new tab)
- github.com/uutils/coreutils/releases/tag/0.8.0 (opens in a new tab)