CVE-2026-6594

brikcss merge prototype pollution

Published: Apr 20, 2026Updated: Apr 22, 2026 Sources: CVE List NVDCWE-94

7.3HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-94 CWE-1321

Affected Products

brikcss

aka brik css

mergeLibrary

OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://github.com/sudo-secure/security-research/blob/main/brikcss-merge/prototype-pollution/PoC.md

github.com

https://vuldb.com/submit/791805

vuldb.com

https://vuldb.com/vuln/358229

vuldb.com

and 1 more references View all →

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