Vulnerability DatabaseGHSA-4q55-j62x-fr9h

GHSA-4q55-j62x-fr9h: 
JavaScript vulnerability analysis and mitigation

This is another instance of https://github.com/sveltejs/devalue/security/advisories/GHSA-mwv9-gp5h-frr4, where some payloads could cause parse to create objects with a __proto__ own property. This on its own is not enough to cause prototype pollution, and indeed this is actually how JSON.parse works, but we decided to be a little more defensive here and not allow the creation of objects with __proto__ own-properties. It is very unlikely for this to cause any issues.


Source: NVD

Related JavaScript vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

GHSA-mcm9-63f2-9j32HIGH8.2
  • JavaScript logoJavaScript
  • devalue
NoYesOct 01, 2026
GHSA-x5rw-q4pp-hg5gHIGH8.2
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NoYesOct 01, 2026
GHSA-hx4r-w6wj-j8fgMEDIUM6.3
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  • devalue
NoYesOct 01, 2026
GHSA-4q55-j62x-fr9hMEDIUM6.3
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NoYesOct 01, 2026
GHSA-wf3x-273g-mvxvLOW2.3
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  • devalue
NoYesOct 01, 2026

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