CVE-2026-35381

Summary

cut: -s ignored in -z -d '' newline-delimiter mode

Severity

low

CVSS

3.3

EPSS

0.2% (p8)

CWE

CWE-684

Also known as

GHSA-532v-xp3f-837c, GHSA-pmfc-4wjj-gmhx

Published

2026-07-06

Updated

2026-07-06

Advisory details

cut routes -z -d '' through a special newline-delimiter path that ignores the -s only-delimited flag, emitting whole undelimited records (plus NUL) that should be suppressed. Pipelines relying on cut -s to drop undelimited records process data that should be filtered.

printf 'abc' | cut -z -d '' -s -f 1 | od -An -tx1   # GNU: no output ; uutils: 61 62 63 00

Zellic private finding (zellic-ext/coreutils-private PR #102). Reported in the Zellic uutils coreutils Program Security Assessment (for Canonical, Jan 2026), audited commit 3a07ffc5a9bd4c283e75afa548ba1f1957bad242.

References

• https://github.com/advisories/GHSA-pmfc-4wjj-gmhx
• https://github.com/uutils/coreutils/security/advisories/GHSA-pmfc-4wjj-gmhx
• https://nvd.nist.gov/vuln/detail/CVE-2026-35381
• https://github.com/uutils/coreutils/pull/11394
• https://github.com/uutils/coreutils/commit/483f13e91830c468262aa1e010e753d6ae99c898
• https://github.com/uutils/coreutils/releases/tag/0.8.0

Related advisories

• CVE-2026-52735 — critical · crates.io/zebra-script

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