CVE-2025-4727 – meteor

Package

Manager: npm
Name: meteor
Vulnerable Version: >=0 <=3.2.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00134 pctl0.33896

Details

Meteor Affected By Inefficient Regular Expression Complexity A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.

Metadata

Created: 2025-05-16T00:31:08Z
Modified: 2025-05-16T17:44:54Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-j3v9-6gc7-vf5f/GHSA-j3v9-6gc7-vf5f.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-j3v9-6gc7-vf5f
Finding: F067
Auto approve: 1