Threat database

CVE-2026-84994 is a high-severity vulnerability in the Qwik JavaScript framework prior to versions 1.20.0 and 2.0.0-beta.37. It involves uncaught exceptions caused by improper handling of thenables during server-side JSON deserialization. An unauthenticated attacker can send specially crafted requests that cause the Node.js server to terminate due to unhandled promise rejections, resulting in denial of service. This can crash a single server or keep multiple replicas unavailable. The issue is fixed in the specified versions.

NextAuth.js provides authentication for Next.js. Prior to @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32, the exported getToken() helper in the next-auth/jwt and @auth/core/jwt modules can throw an uncaught exception when it reads a malformed Authorization: Bearer header. When no session cookie is present, getToken() URL-decodes the bearer value before validating it, and malformed percent encoding causes decodeURIComponent() to throw instead of treating the token as invalid. Because getToken() is commonly called in API routes, middleware, and server-side request handlers, a single unauthenticated request can trigger an unhandled exception in code paths that authenticate requests, causing a per-request denial of service without exposing tokens, sessions, or other data and without bypassing authentication. This issue is fixed in @auth/core 0.41.3 and next-auth 4.24.15 and 5.0.0-beta.32.

CVE-2025-68665 is a high-severity deserialization vulnerability in the LangChain JS framework affecting versions prior to 0.3.80/@langchain/core 1.1.8 and langchain 1.2.3. The flaw arises from improper handling of objects containing the 'lc' key during JSON serialization, allowing attacker-controlled data to be interpreted as legitimate LangChain objects during deserialization. This can lead to remote code execution or other malicious actions without requiring authentication or user interaction. The vulnerability impacts confidentiality but not integrity or availability directly.