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CLEANSTART-2026-TX70118 — Security fix for CVE-2025-68665 applied in: n8n 2.28.0-r2

Affected: CleanStart: n8n

Security vulnerability affects the n8n package. This issue is resolved in later releases. See references for vulnerability details.

EUVD-2026-264333

fkie_cve-2025-68665

LangChain is a framework for building LLM-powered applications. Prior to @langchain/core versions 0.3.80 and 1.1.8, and prior to langchain versions 0.3.37 and 1.2.3, a serialization injection vulnerability exists in LangChain JS's toJSON() method (and subsequently when string-ifying objects using JSON.stringify(). The method did not escape objects with 'lc' keys when serializing free-form data in kwargs. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in @langchain/core versions 0.3.80 and 1.1.8, and langchain versions 0.3.37 and 1.2.3

GHSA-r399-636x-v7f6 — LangChain serialization injection vulnerability enables secret extraction

Affected: npm: @langchain/core, npm: langchain

## Context

A serialization injection vulnerability exists in LangChain JS's `toJSON()` method (and subsequently when string-ifying objects using `JSON.stringify()`. The method did not escape objects with `'lc'` keys when serializing free-form data in kwargs. The `'lc'` key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data.

### Attack surface

The core vulnerability was in `Serializable.toJSON()`: this method failed to escape user-controlled objects containing `'lc'` keys within kwargs (e.g., `additional_kwargs`, `metadata`, `response_metadata`). When this unescaped data was later deserialized via `load()`, the injected structures were treated as legitimate LangChain objects rather than plain user data.

This escaping bug enabled several attack vectors:

1. **Injection via user data**: Malicious LangChain object structures could be injected through user-controlled fields like `metadata`, `additional_kwargs`, or `response_metadata` 2. **Secret extraction**: Injected secret structures could extract environment variables when `secretsFromEnv` was enabled (which had no explicit default, effectively defaulting to `true` behavior) 3. **Class instantiation via import maps**: Injected constructor structures could instantiate any class available in the provided import maps with attacker-controlled parameters

**Note on imp…

RHSA-2026:3713 — Red Hat Security Advisory: RHOAI 3.3 - Red Hat OpenShift AI

github.com/containerd/containerd: containerd local privilege escalation vllm: Server Side request forgery (SSRF) in MediaConnector keras: Path Traversal Vulnerability in keras node-forge: node-forge: Interpretation conflict vulnerability allows bypassing cryptographic verifications php: PHP: Denial of Service via invalid character sequence in PDO PostgreSQL prepared statement transformers: code execution when processing a malicious Perceiver model file transformers: code execution when processing a malicious Transformer-XL model file diffusers: Hugging Face Diffusers: Remote Code Execution via Deserialization of Untrusted Data transformers: code execution when processing a malicious megatron_gpt2 model file accelerate: Hugging Face Accelerate: Remote Code Execution via Deserialization of Untrusted Data transformers: code execution when converting a malicious SEW model checkpoint transformers: code execution when converting a malicious SEW-D model checkpoint transformers: code execution when converting a malicious HuBERT model checkpoint transformers: code execution when processing a malicious X-CLIP model file transformers: code execution when processing a malicious GLM4 model file qs: qs: Denial of Service via improper input validation in array parsing vllm: HTTP header size limit not enforced allows Denial of Service from Unauthenticated requests runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects v…

WID-SEC-W-2025-2936 — LangChain: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen

Ein Angreifer kann mehrere Schwachstellen in LangChain ausnutzen, um Informationen offenzulegen.