{"id":"CVE-2026-35356","sourceIdentifier":"security@ubuntu.com","published":"2026-04-22T17:16:38.130","lastModified":"2026-10-26T21:10:00.170","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the install utility of uutils coreutils when using the -D flag. The command creates parent directories and subsequently performs a second path resolution to create the target file, neither of which is anchored to a directory file descriptor. An attacker with concurrent write access can replace a path component with a symbolic link between these operations, redirecting the privileged write to an arbitrary file system location."},{"lang":"es","value":"Una vulnerabilidad de tipo Time-of-Check to Time-of-Use (TOCTOU) existe en la utilidad install de uutils coreutils al usar la bandera -D. El comando crea directorios padre y posteriormente realiza una segunda resolución de ruta para crear el archivo objetivo, ninguna de las cuales está anclada a un descriptor de archivo de directorio. Un atacante con acceso de escritura concurrente puede reemplazar un componente de ruta con un enlace simbólico entre estas operaciones, redirigiendo la escritura privilegiada a una ubicación arbitraria del sistema de archivos."}],"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":"0.7.0","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@ubuntu.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-22T17:59:48.307644Z","id":"CVE-2026-35356","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security@ubuntu.com","type":"Secondary","description":[{"lang":"en","value":"CWE-367"}]}],"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/10140","source":"security@ubuntu.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/uutils/coreutils/releases/tag/0.7.0","source":"security@ubuntu.com","tags":["Release Notes"]}]}