CVE-2024-42002

Unsafe use of eval() method in ros2 topic hz tool

State: Published
Severity: 8.6 High
Published: Sep 28, 2026
Updated: Sep 30, 2026
Reserved: Aug 1, 2024

Description

A code injection vulnerability has been discovered in the Robot Operating System 2 (ROS 2) 'ros2topic' command-line tool, affecting all ROS 2 distributions from Crystal Clemmys up to and including Lyrical Luth and Rolling Ridley. The vulnerability lies in the 'hz' verb, which reports the publishing rate of a topic and accepts a user-provided Python expression via the --filter option. This input is passed directly to the eval() function without sanitization, allowing a local user to craft and execute arbitrary code.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	canonical
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	canonical

Weaknesses

CWE-95 Improper neutralization of directives in dynamically evaluated code ('eval injection')
CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
Robot Operating System 2 (ROS 2)Open Source Robotics Foundation	Rolling RidleyAffected Lyrical LuthAffected Kilted KaijuAffected Jazzy JaliscoAffected Iron IrwiniAffected Humble HawksbillAffected Galactic GeocheloneAffected Foxy FitzroyAffected Eloquent ElusorAffected Dashing DiademataAffected Crystal ClemmysAffected

References

https://github.com/ros2/ros2cli/pull/1001patch
https://github.com/ros2/ros2cli/pull/133#discussion_r223081766issue-tracking

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