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{"affected": [{"configurations": [{"platform": ["linux", "unix", "macos"], "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "coreutils", "source": "cna", "vendor": "Uutils"}, "product": "coreutils", "vendor": "uutils"}], "analysis": {"en": {"generated_at": "2026-04-27T08:37:17.149540+00:00", "value": {"mitigation_remediation": ["Update uutils coreutils to a release that incorporates the fix for non\u2011UTF\u20118 filenames; the pull request that implements the work\u2011around has already been merged and will be included in the next stable release.", "If an update is not yet available, temporarily replace the uutils ln utility with GNU ln for the operations that handle non\u2011UTF\u20118 filenames, ensuring that scripts use the system\u2019s standard ln instead of the Rust implementation.", "Add error handling to scripts that invoke uutils ln to detect non\u2011zero exit codes, log the filenames that caused failures, and gracefully continue or retry with a different utility."], "summary": {"action": "Apply Patch", "impact": "Local Denial of Service"}, "threat_synthesis": {"affected_systems": "The impact is limited to installations of the uutils coreutils package, a Rust\u2011based reimplementation of GNU coreutils. Any Unix\u2011like system that uses the uutils ln utility for automated scripts, backups, or file\u2011management tasks is at risk, especially when those scripts process filenames containing non\u2011UTF\u20118 bytes.", "description_and_impact": "A logic error in the ln utility of uutils coreutils causes the program to reject source paths that contain non\u2011UTF\u20118 filename bytes when the user specifies a target directory (e.g., ln SOURCE... DIRECTORY). This failure occurs because the implementation enforces UTF\u20118 encoding and does not treat filenames as raw bytes like GNU ln does. The immediate consequence is that the utility cannot stat the file, returns a non\u2011zero exit code, and any scripts or system tasks that depend on creating links silently fail. The vulnerability is a local denial\u2011of\u2011service condition that affects only the environment in which the ln command is executed; it does not allow remote code execution or compromise data confidentiality or integrity.", "risk_and_exploitability": "The CVSS score of 3.3 classifies this as low severity, and the EPSS score is not available, suggesting that exploitation is not widely targeted. Because the attack vector is local and requires the presence of the uutils ln utility, the risk remains limited to environments that depend on this utility. The vulnerability is not listed in CISA\u2019s KEV catalog, and no publicly known exploits have been disclosed."}}}}, "created": "2026-04-27T18:42:00.093680+00:00", "updated": "2026-04-27T19:53:31.541086+00:00", "vendors": ["uutils", "uutils$PRODUCT$coreutils"], "weaknesses": ["CWE-176"]}