CVE-2026-35343

# Create a test file where the first line does not end with a newline echo -n "line_without_newline" > poc.txt echo "line_with_newline" >> poc.txt # Run uutils cut with -s (suppress lines without delimiter) and newline as delimiter # Expected: Only "line_with_newline" should be printed # Vulnerable behavior: Both lines are printed uutils-cut -d $'\n' -f 1 -s poc.txt

{"cve": {"id": "CVE-2026-35343", "sourceIdentifier": "[email protected]", "published": "2026-04-22T17:16:36.357", "lastModified": "2026-05-04T20:10:47.587", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The cut utility in uutils coreutils incorrectly handles the -s (only-delimited) option when a newline character is specified as the delimiter. The implementation fails to verify the only_delimited flag in the cut_fields_newline_char_delim function, causing the utility to print non-delimited lines that should have been suppressed. This can lead to unexpected data being passed to downstream scripts that rely on strict output filtering."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-670"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*", "versionEndExcluding": "0.7.0", "matchCriteriaId": "7F64F6A4-00A5-4FB8-BB51-21F475C11FF2"}]}]}], "references": [{"url": "https://github.com/uutils/coreutils/pull/11143", "source": "[email protected]", "tags": ["Issue Tracking", "Patch"]}, {"url": "https://github.com/uutils/coreutils/releases/tag/0.7.0", "source": "[email protected]", "tags": ["Release Notes"]}]}}