mediumCVSS 7.3Vulnerability
CVE-2026-6594
A Prototype Pollution vulnerability was determined in brikcss merge up to 1.3.0. 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.
Properties
- severity
- medium
- summary
- Deep Merge is Vulnerable to Prototype Pollution Through Lack of Sanitization
- epss_score
- 0.00336
- cvss_score
- 7.3
- ghsa_published
- 2026-04-20T03:34:41Z
- source_url
- https://github.com/advisories/GHSA-3jc6-6r48-v6qf
- ghsa_updated
- 2026-04-23T14:23:27Z
- ghsa_id
- GHSA-3jc6-6r48-v6qf
- cve_id
- CVE-2026-6594
- cvss_vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- is_ghsa_only
- false
- epss_percentile
- 0.26297
Related Entities (6)
ENRICHED_BY (1)
→[Source]FIRST EPSS
VULNERABLE_TO (1)
←[Software]npm/@brikcss/merge
AFFECTS (1)
→[Software]npm/@brikcss/merge
HAS_WEAKNESS (2)
→[Weakness]Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
→[Weakness]Improper Control of Generation of Code ('Code Injection')
REPORTED_BY (1)
→[Source]GitHub Advisory Database
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