CVE-2025-4727 Information

Description

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.

CVSS Vector

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

Reference

https://github.com/meteor/meteor/commit/f7ea6817b90952baaea9baace2a3b4366fee6a63 https://github.com/meteor/meteor/issues/13713 https://github.com/meteor/meteor/pull/13721 https://github.com/meteor/meteor/releases/tag/release/METEOR%403.2.2 https://vuldb.com/?ctiid.309029 https://vuldb.com/?id.309029 https://vuldb.com/?submit.570441

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

3.7