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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/uutils/coreutils/pull/10140 Issue Tracking, Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.3 · uutilsNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*
References 2
- https://github.com/uutils/coreutils/pull/10140 Issue Tracking, Patch
- https://github.com/uutils/coreutils/releases/tag/0.7.0 Release Notes