Vulnerability in Uutils Coreutils
CVE-2026-93658
uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with elevated privileges when ownership change operations fail on capability-restricted systems.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (3.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/uutils/coreutils/security/advisories/GHSA-cgg3-923w-v53m (vendor-advisory)
- github.com/uutils/coreutils/pull/13629 (issue-tracking, patch)
- github.com/uutils/coreutils/commit/7c87ab04fee8e52d989fb2625568a3eeda1b1f55 (patch)
- github.com/uutils/coreutils/blob/0.9.0/src/uu/install/src/install.rs (technical-description)
- github.com/uutils/coreutils (product)
- www.vulncheck.com/advisories/uutils-coreutils-0.0.18-before-0.10.0-privilege-es… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-93658?
- CVE-2026-93658 is a high-severity vulnerability in Uutils Coreutils, classified under Improper Preservation of Permissions. CVSS score: 7.0/10. Published 2026-09-18.
- How severe is CVE-2026-93658?
- High severity. CVSS v3 base score is 7.0 out of 10.