CVE-2026-22015-Serverless-Function-Environment-Variable-Injection-via-Event

CVE-2026-22015 – Serverless Function Environment Variable Injection via Event Program Code Python Lambda sim root@kitploit: lambdaenvinject.py - Vulnerable function that reads env from event import os, json def handlerevent, context: The event contains environment variable overrides debug feature...

CVE-2026-55091 flat-to-nested: Prototype pollution in flat-to-nested convert() via __proto__ parent/id key

flat-to-nested converts a hierarchy from a flat representation to a nested representation. Prior to 1.1.2, FlatToNested.prototype.convert in index.js uses attacker-influenced id and parent record fields directly as keys in the plain temp and pendingChildOf objects. When parent or id is proto,...

CVE-2026-55091

flat-to-nested (NPM, versions ≥1.1.0, ≤1.1.1) is vulnerable to prototype pollution (CWE-1321) in FlatToNested.prototype.convert (index.js). The function uses attacker-controlled id and parent field values directly as keys in plain objects, so a value of "__proto__" resolves via the prototype chai...

EUVD-2026-77579

Yayson is a library for serializing and reading JSON API data in JavaScript. Prior to 4.3.0, Store and LegacyStore use attacker-controlled JSON:API type, id, and relationship names as keys in plain-object lookup tables in src/yayson/store.ts and src/yayson/legacy-store.ts. A document whose type i...

PT-2026-90549

Summary Store/LegacyStore key internal lookup tables by the type, id, and relationship names from a JSON:API document. Because these were plain objects, a document with type: " proto " writes onto Object.prototype, polluting every object in the process. Severity Suggested CVSS v3.1...