CVE-2026-42462

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it without changing its...

Incorrect Behavior Order: Validate Before Canonicalize

Overview @fedify/fedify is an An ActivityPub server framework Affected versions of this package are vulnerable to Incorrect Behavior Order: Validate Before Canonicalize through manipulation of JSON-LD document structure using keywords such as @graph, @included, and @reverse. An attacker can alter...