GHSA-CP6Q-959Q-F8RH Tiptap: mergeAttributes() turns an own __proto__ key into inherited executable DOM attributes

Summary @tiptap/core's public mergeAttributes helper uses ordinary bracket assignment on keys returned by Object.entries. An own proto key from JSON therefore invokes the legacy prototype setter on the fresh merged object. The function returns an object whose prototype is attacker-controlled, whi...

Prototype Pollution

Overview @tiptap/core is a headless rich text editor Affected versions of this package are vulnerable to Prototype Pollution via the mergeAttributes function. An attacker can inject malicious prototype properties by supplying crafted objects with a proto key, which can result in inherited...

Tiptap: mergeAttributes() turns an own __proto__ key into inherited executable DOM attributes

Summary @tiptap/core's public mergeAttributes helper uses ordinary bracket assignment on keys returned by Object.entries. An own proto key from JSON therefore invokes the legacy prototype setter on the fresh merged object. The function returns an object whose prototype is attacker-controlled, whi...

PT-2026-90708

Summary @tiptap/core's public mergeAttributes helper uses ordinary bracket assignment on keys returned by Object.entries. An own proto key from JSON therefore invokes the legacy prototype setter on the fresh merged object. The function returns an object whose prototype is attacker-controlled, whi...

Microsoft Internet Explorer mergeAttributes Type Confusion Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The vulnerability relates to how...