CVE-2026-35348

The sort utility in uutils coreutils is vulnerable to a process panic when using the --files0-from option with inputs containing non-UTF-8 filenames. The implementation enforces UTF-8 encoding and utilizes expect(), causing an immediate crash when encountering valid but non-UTF-8 paths. This diverges from GNU sort, which treats filenames as raw bytes. A local attacker can exploit this to crash the utility and disrupt automated pipelines.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/uutils/coreutils/issues/9696	Exploit Issue Tracking Vendor Advisory
https://github.com/uutils/coreutils/issues/9696	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) La utilidad “sort” en “uutils coreutils” es vulnerable a un pánico de proceso al usar la opción “--files0-from” con entradas que contienen nombres de archivo que no son UTF-8. La implementación fuerza la codificación UTF-8 y utiliza “expect()”, causando una caída inmediata al encontrar rutas válidas pero que no son UTF-8. Esto difiere de “GNU sort”, que trata los nombres de archivo como bytes sin procesar. Un atacante local puede explotar esto para hacer que la utilidad falle y perturbar los pipelines automatizados.

Information

Published : 2026-04-22 17:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-35348

Mitre link : CVE-2026-35348

CVE.ORG link : CVE-2026-35348

JSON object : View

Products Affected

uutils

coreutils

CWE

CWE-248

Uncaught Exception

{"id": "CVE-2026-35348", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35348", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-22T18:19:29.927395Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security@ubuntu.com", "affectedData": [{"repo": "https://github.com/uutils/coreutils", "vendor": "Uutils", "product": "coreutils", "platforms": ["Linux", "Unix", "macOS"], "packageName": "coreutils", "collectionURL": "https://github.com/uutils", "defaultStatus": "affected"}]}], "published": "2026-04-22T17:16:37.040", "references": [{"url": "https://github.com/uutils/coreutils/issues/9696", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "source": "security@ubuntu.com"}, {"url": "https://github.com/uutils/coreutils/issues/9696", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-248"}]}], "descriptions": [{"lang": "en", "value": "The sort utility in uutils coreutils is vulnerable to a process panic when using the --files0-from option with inputs containing non-UTF-8 filenames. The implementation enforces UTF-8 encoding and utilizes expect(), causing an immediate crash when encountering valid but non-UTF-8 paths. This diverges from GNU sort, which treats filenames as raw bytes. A local attacker can exploit this to crash the utility and disrupt automated pipelines."}, {"lang": "es", "value": "La utilidad \u201csort\u201d en \u201cuutils coreutils\u201d es vulnerable a un p\u00e1nico de proceso al usar la opci\u00f3n \u201c--files0-from\u201d con entradas que contienen nombres de archivo que no son UTF-8. La implementaci\u00f3n fuerza la codificaci\u00f3n UTF-8 y utiliza \u201cexpect()\u201d, causando una ca\u00edda inmediata al encontrar rutas v\u00e1lidas pero que no son UTF-8. Esto difiere de \u201cGNU sort\u201d, que trata los nombres de archivo como bytes sin procesar. Un atacante local puede explotar esto para hacer que la utilidad falle y perturbar los pipelines automatizados."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "4A9AF9E4-E17C-48AD-8051-B49998618839"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}