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CVE-2026-6594

HIGH

7.3

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.

CVE Details

CVSS v3.1 Score7.3

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/20/2026

Last Modified4/22/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-94CWE-1321

References

https://github.com/sudo-secure/security-research/blob/main/brikcss-merge/prototype-pollution/PoC.md(cna@vuldb.com)

https://vuldb.com/submit/791805(cna@vuldb.com)

https://vuldb.com/vuln/358229(cna@vuldb.com)

https://vuldb.com/vuln/358229/cti(cna@vuldb.com)

IOC Correlations

No correlations recorded

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