CVE-2026-35381

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.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/uutils/coreutils/pull/11394	Exploit Issue Tracking Patch
https://github.com/uutils/coreutils/releases/tag/0.8.0	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Un error de lógica en la utilidad cut de uutils coreutils hace que la utilidad ignore el indicador -s (solo delimitado) cuando se usan las opciones -z (terminado en nulo) y -d ’’ (delimitador vacío) juntas. La implementación enruta incorrectamente esta combinación específica a través de una ruta de código especializada para delimitadores de nueva línea que no verifica el estado de supresión de registros. En consecuencia, uutils cut emite el registro completo más un byte NUL en lugar de suprimirlo. Esta divergencia del comportamiento de GNU coreutils crea un riesgo de integridad de datos para pipelines automatizados que dependen de cut -s para filtrar datos no delimitados.

Information

Published : 2026-04-22 17:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-35381

Mitre link : CVE-2026-35381

CVE.ORG link : CVE-2026-35381

JSON object : View

Products Affected

uutils

coreutils

CWE

CWE-684

Incorrect Provision of Specified Functionality

{"id": "CVE-2026-35381", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35381", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-22T16:52:48.799157Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.3, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security@ubuntu.com", "affectedData": [{"repo": "https://github.com/uutils/coreutils", "vendor": "Uutils", "product": "coreutils", "versions": [{"status": "affected", "version": "0", "lessThan": "0.8.0", "versionType": "semver"}], "platforms": ["Linux", "Unix", "macOS"], "packageName": "coreutils", "collectionURL": "https://github.com/uutils", "defaultStatus": "unaffected"}]}], "published": "2026-04-22T17:16:43.200", "references": [{"url": "https://github.com/uutils/coreutils/pull/11394", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "security@ubuntu.com"}, {"url": "https://github.com/uutils/coreutils/releases/tag/0.8.0", "tags": ["Release Notes"], "source": "security@ubuntu.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-684"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Un error de l\u00f3gica en la utilidad cut de uutils coreutils hace que la utilidad ignore el indicador -s (solo delimitado) cuando se usan las opciones -z (terminado en nulo) y -d \u2019\u2019 (delimitador vac\u00edo) juntas. La implementaci\u00f3n enruta incorrectamente esta combinaci\u00f3n espec\u00edfica a trav\u00e9s de una ruta de c\u00f3digo especializada para delimitadores de nueva l\u00ednea que no verifica el estado de supresi\u00f3n de registros. En consecuencia, uutils cut emite el registro completo m\u00e1s un byte NUL en lugar de suprimirlo. Esta divergencia del comportamiento de GNU coreutils crea un riesgo de integridad de datos para pipelines automatizados que dependen de cut -s para filtrar datos no delimitados."}], "lastModified": "2026-10-26T22:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "2365DBBD-6F10-4651-8DA4-08AE79E14423", "versionEndExcluding": "0.8.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}