{"id":"CVE-2026-35375","sourceIdentifier":"security@ubuntu.com","published":"2026-04-22T17:16:42.293","lastModified":"2026-10-26T22:10:00.163","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A logic error in the split utility of uutils coreutils causes the corruption of output filenames when provided with non-UTF-8 prefix or suffix inputs. The implementation utilizes to_string_lossy() when constructing chunk filenames, which automatically rewrites invalid byte sequences into the UTF-8 replacement character (U+FFFD). This behavior diverges from GNU split, which preserves raw pathname bytes intact. In environments utilizing non-UTF-8 encodings, this vulnerability leads to the creation of files with incorrect names, potentially causing filename collisions, broken automation, or the misdirection of output data."},{"lang":"es","value":"Un error de lógica en la utilidad ’split’ de uutils coreutils causa la corrupción de los nombres de archivo de salida cuando se le proporcionan entradas de prefijo o sufijo que no son UTF-8. La implementación utiliza to_string_lossy() al construir nombres de archivo de fragmentos, lo que reescribe automáticamente las secuencias de bytes inválidas en el carácter de reemplazo UTF-8 (U+FFFD). Este comportamiento difiere de GNU split, que preserva los bytes de la ruta de acceso sin procesar intactos. En entornos que utilizan codificaciones que no son UTF-8, esta vulnerabilidad conduce a la creación de archivos con nombres incorrectos, lo que podría causar colisiones de nombres de archivo, automatización rota o la redirección errónea de datos de salida."}],"affected":[{"source":"security@ubuntu.com","affectedData":[{"vendor":"Uutils","product":"coreutils","defaultStatus":"unaffected","collectionURL":"https://github.com/uutils","packageName":"coreutils","platforms":["Linux","Unix","macOS"],"repo":"https://github.com/uutils/coreutils","versions":[{"version":"0","lessThan":"0.8.0","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@ubuntu.com","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}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-22T17:17:33.122757Z","id":"CVE-2026-35375","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security@ubuntu.com","type":"Secondary","description":[{"lang":"en","value":"CWE-176"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*","versionEndExcluding":"0.8.0","matchCriteriaId":"2365DBBD-6F10-4651-8DA4-08AE79E14423"}]}]}],"references":[{"url":"https://github.com/uutils/coreutils/pull/11397","source":"security@ubuntu.com","tags":["Exploit","Issue Tracking","Patch"]},{"url":"https://github.com/uutils/coreutils/releases/tag/0.8.0","source":"security@ubuntu.com","tags":["Release Notes"]}]}