Improper input validation in Uutils Coreutils
CVE-2026-35369
An argument parsing error in the kill utility of uutils coreutils incorrectly interprets kill -1 as a request to send the default signal (SIGTERM) to PID -1. Sending a signal to PID -1 causes the kernel to terminate all processes visible to the caller, potentially leading to a system crash or massive process termination. This differs from GNU coreutils, which correctly recognizes -1 as a signal number in this context and would instead report a missing PID argument.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (3.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.8% 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: 0.002 · change: +0.000
Affected products
- Uutils Coreutils — versions 0
Weakness classification (CWE)
References
- github.com/uutils/coreutils/pull/9700 (issue-tracking, Patch, patch, Issue Tracking)
- github.com/uutils/coreutils/releases/tag/0.6.0 (vendor-advisory, Release Notes)
Frequently asked questions
- What is CVE-2026-35369?
- CVE-2026-35369 is a medium-severity vulnerability in Uutils Coreutils, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2026-04-22.
- How severe is CVE-2026-35369?
- Medium severity. CVSS v3 base score is 5.5 out of 10.