uutils coreutils cut Local Logic Error and Data Integrity Issue in Output Filtering
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
A logic error in the cut utility of uutils coreutils causes the utility to ignore the -s (only-delimited) flag when using the -z (null-terminated) and -d '' (empty delimiter) options together. The implementation incorrectly routes this specific combination through a specialized newline-delimiter code path that fails to check the record suppression status. Consequently, uutils cut emits the entire record plus a NUL byte instead of suppressing it. This divergence from GNU coreutils behavior creates a data integrity risk for automated pipelines that rely on cut -s to filter out undelimited data.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Uutils | coreutils | before 0.8.0 | 0.8.0 | Patch available | CNA |
| — | uu_cut (crates.io) | before 0.8.0 | 0.8.0 | Patch available | GHSA-pmfc-4wjj-gmhx |
- coreutils VendorUutils Affected before 0.8.0 Fixed in 0.8.0 Patch available CNA
- uu_cut (crates.io) Vendor— Affected before 0.8.0 Fixed in 0.8.0 Patch available GHSA-pmfc-4wjj-gmhx
Remediation
- Fix · CNA coreutils (Uutils) Fixed in 0.8.0
- Fix · GHSA-pmfc-4wjj-gmhx uu_cut (crates.io) Fixed in 0.8.0 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Uutils coreutils — github.com/uutils/coreutils/releases/tag/0.8.0
7 records Highest priority Priority MEDIUM 3 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2026-27517 uutils coreutils tr Local Logic Error and Data Integrity Issue in Character Class HandlingPriority MEDIUM 49
- TI-2026-27516 uutils coreutils expr Local Denial of Service via Eager Evaluation of Parenthesized SubexpressionsPriority MEDIUM 49
- TI-2026-27513 uutils coreutils split Local Data Integrity Issue via Lossy Filename EncodingPriority MEDIUM 49
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-35381
- 2026-10-03 Alias added: GHSA-pmfc-4wjj-gmhx
- 2026-10-06 Fix available: crates.io/[email protected] · GHSA-pmfc-4wjj-gmhx
References
Advisory 2
More Uutils Coreutils vulnerabilities
- TI-2026-27506 uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection CVSS 3.1HIGH 7.2
- TI-2026-27498 uutils coreutils touch Arbitrary File Truncation via TOCTOU Race Condition CVSS 3.1MEDIUM 6.3
- TI-2026-27488 uutils coreutils cp Unexpected Privileged Executable Creation with -p CVSS 3.1MEDIUM 6.6
- TI-2026-27502 uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition CVSS 3.1MEDIUM 6.3
- TI-2026-27493 uutils coreutils install Arbitrary File Overwrite via Symlink TOCTOU Race CVSS 3.1MEDIUM 6.3
- TI-2026-27511 uutils coreutils ln Local Denial of Service via Improper Handling of Non-UTF-8 Filenames CVSS 3.1MEDIUM 5.5
Sources
- CVE-2026-35381 · CVE Program
- CVE-2026-35381 · NVD
- FIRST EPSS
- GHSA-pmfc-4wjj-gmhx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-35381 · Red Hat security data · CC BY 4.0
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