CVE-2026-35369
uutils coreutils kill System-wide Process Termination and Denial of Service via Argument Misinterpretation
Description
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.
INFO
Published Date :
April 22, 2026, 5:16 p.m.
Last Modified :
May 4, 2026, 6:50 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | cc1ad9ee-3454-478d-9317-d3e869d708bc | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the uutils coreutils package.
- Verify kill utility behavior with -1 argument.
- Apply vendor patches if available.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-35369.
| URL | Resource |
|---|---|
| https://github.com/uutils/coreutils/pull/9700 | Issue Tracking Patch |
| https://github.com/uutils/coreutils/releases/tag/0.6.0 | Release Notes |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-35369 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-35369
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-35369 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-35369 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 04, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:* versions up to (excluding) 0.6.0 Added Reference Type Canonical Ltd.: https://github.com/uutils/coreutils/pull/9700 Types: Issue Tracking, Patch Added Reference Type Canonical Ltd.: https://github.com/uutils/coreutils/releases/tag/0.6.0 Types: Release Notes -
New CVE Received by [email protected]
Apr. 22, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-20 Added Reference https://github.com/uutils/coreutils/pull/9700 Added Reference https://github.com/uutils/coreutils/releases/tag/0.6.0