CVE-2026-6594

HIGH

brikcss merge prototype pollution

Title source: cna

Description

A vulnerability was determined in brikcss merge up to 1.3.0. This affects an unknown part. Executing a manipulation of the argument __proto__/constructor.prototype/prototype can lead to improperly controlled modification of object prototype attributes. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSS v3 7.3
EPSS 0.0004
EPSS Percentile 13.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Details

CWE
CWE-1321 CWE-94
Status published
Products (4)
brikcss/merge 1.0
brikcss/merge 1.1
brikcss/merge 1.2
brikcss/merge 1.3.0
Published Apr 20, 2026
Tracked Since Apr 20, 2026