7.0High
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.
What this means for your business
- An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
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Scoring
- CVSS
- 7.0 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H- CVSS v4
- 7.3
- Weakness
- CWE-281
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-09-18
- Last modified
- 2026-09-18
- Sources
- NVD
References
- https://github.com/uutils/coreutils
- https://github.com/uutils/coreutils/blob/0.9.0/src/uu/install/src/install.rs
- https://github.com/uutils/coreutils/commit/7c87ab04fee8e52d989fb2625568a3eeda1b1f55
- https://github.com/uutils/coreutils/pull/13629
- https://github.com/uutils/coreutils/security/advisories/GHSA-cgg3-923w-v53m
- https://www.vulncheck.com/advisories/uutils-coreutils-0.0.18-before-0.10.0-privilege-escalation-via-setuid
- https://github.com/uutils/coreutils/security/advisories/GHSA-cgg3-923w-v53m