CVE-2026-8657 - Apache jsondiffpatch Prototype Pollution Vulnerability

[Starburst-David]

CVE ID: CVE-2026-8657
Published: May 16, 2026, 6:16 a.m.
Description: Versions of the package jsondiffpatch before 0.7.6 are vulnerable to Prototype Pollution via the jsondiffpatch.patch() and jsondiffpatch/formatters/jsonpatch.patch() APIs. An attacker can perform prototype pollution by supplying crafted delta or JSON Patch documents, as attacker-controlled property names and path segments are used to traverse and modify objects without restricting access to special properties like __proto__ or constructor.prototype, allowing modification of Object.prototype.
Severity: 8.2 | HIGH

https://cvefeed.io/vuln/detail/CVE-2026-8657