Vulnerability in Uutils Coreutils
CVE-2026-35350
The cp utility in uutils coreutils fails to properly handle setuid and setgid bits when ownership preservation fails. When copying with the -p (preserve) flag, the utility applies the source mode bits even if the chown operation is unsuccessful. This can result in a user-owned copy retaining original privileged bits, creating unexpected privileged executables that violate local security policies. This differs from GNU cp, which clears these bits when ownership cannot be preserved.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.001 (2.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.5% 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/issues/9750 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-35350?
- CVE-2026-35350 is a medium-severity vulnerability in Uutils Coreutils, classified under Improper Preservation of Permissions. CVSS score: 6.6/10. Published 2026-04-22.
- How severe is CVE-2026-35350?
- Medium severity. CVSS v3 base score is 6.6 out of 10.