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osv_ghsa
osv_ghsa
•added 2026/10/01 3:13 p.m.•5 views

GHSA-4Q55-J62X-FR9H devalue: Malformed null-prototype object keys bypass __proto__ rejection via property-key coercion

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,...

6.3CVSS5.8AI score
SaveExploits0References4
Github Security Blog
Github Security Blog
•added 2026/10/01 3:13 p.m.•38 views

devalue: Malformed null-prototype object keys bypass __proto__ rejection via property-key coercion

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,...

5.8AI score
SaveExploits0References4Affected Software1
Patchstack
Patchstack
•added 2026/10/01 3:13 p.m.•26 views

NPM: devalue: Malformed null-prototype object keys bypass __proto__ rejection via property-key coercion

NPM: devalue: Malformed null-prototype object keys bypass proto rejection via property-key coercion vulnerability discovered by ? in WordPress Npm devalue versions = 5.9.2...

5.9AI score
SaveExploits0References4Affected Software1
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