CVE-2026-34070

I Found a Path Traversal Bug in LangChain That Could Leak Your Cloud Credentials How a forgotten legacy API in one of AI's most popular frameworks quietly exposed millions of applications to arbitrary file reads. There's a certain feeling you get when a proof-of-concept works on the first try. No...

CVE-2025-68664

CVE-2025-68664 All I Want for Christmas Is Your Secrets: LangGrinch Strikes LangChain Core CVE-2025-68664 Author: Yarden Porat Cyata Research: LangGrinch Vulnerability in LangChain Published: https://cyata.ai/blog/langgrinch-langchain-core-cve-2025-68664/ Yesterday LangChain published a critical...

LangChain-Core < 0.3.81 / 1.x < 1.2.5

LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps and dumpd functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries...

langgrinch-cve-2025-68664-analysis

Análisis de Vulnerabilidad LangGrinch: CVE-2025-68664 Resumen Este repositorio contiene un informe técnico que analiza CVE-2025-68664, también conocido como LangGrinch, una vulnerabilidad de inyección de serialización que afecta a LangChain Core. El informe explica los antecedentes de la...

ROOT-APP-PYPI-CVE-2026-44843 CVE-2026-44843 in langchain-core - Patched by Root

Root has patched CVE-2026-44843 in the langchain-core package for Root:PyPI. Multiple fixed versions available...

ROOT-APP-PYPI-CVE-2026-34070 CVE-2026-34070 in langchain-core - Patched by Root

Root has patched CVE-2026-34070 in the langchain-core package for Root:PyPI. Multiple fixed versions available...

ROOT-APP-PYPI-CVE-2025-65106 CVE-2025-65106 in langchain-core - Patched by Root

Root has patched CVE-2025-65106 in the langchain-core package for Root:PyPI. Multiple fixed versions available...

ROOT-APP-PYPI-CVE-2025-68664 CVE-2025-68664 in langchain-core - Patched by Root

Root has patched CVE-2025-68664 in the langchain-core package for Root:PyPI. Multiple fixed versions available...

PYSEC-2026-1070 Malicious code in langchain-core-mcp (PyPI)

Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of langchain-core-mcp were published to PyPI using stolen credentials. The package executes a bundled JavaScript payload via the Bun runtime on import that harvests and exfiltrates...

PYSEC-2026-1517 langchain-core allows unauthorized users to read arbitrary files from the host file system

A vulnerability in langchain-core versions =0.1.17,=0.2.0,=0.3.0,0.3.15 allows unauthorized users to read arbitrary files from the host file system. The issue arises from the ability to create langchaincore.prompts.ImagePromptTemplate's and by extension langchaincore.prompts.ChatPromptTemplate's...

Security Bulletin: Maximo AI Service uses multiple third party dependencies which are vulnerable to multiple CVEs.

Summary Maximo AI Service uses pdfminersix-20251107-py3-none-any.whl, requests-2.32.5-py3-none-any.whl, langchaincore-0.3.81-py3-none-any.whl, pythondotenv-1.0.1-py3-none-any.whl, langchaintextsplitters-0.3.11-py3-none-any.whl, qs-6.15.1.tgz, idna-3.10-py3-none-any.whl, idna-3.14-py3-none-any.whl...

Malicious code in langchain-core-mcp (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector bd42d83950d8d8fc559905eed104af38cd6c8aef683b96778f0b8d778dd6bd5a Package langchain-core-mcp impersonates the legitimate langchain-core publisher: METADATA sets Project-URL Repository to...

GHSA-PJWX-R37V-7724 vulnerabilities

Vulnerabilities for packages: py3-langchain-core, py3-langchain...

CVE-2026-44843 vulnerabilities

Vulnerabilities for packages: py3-langchain-core, py3-langchain...

CVE-2026-44843 vulnerabilities

Vulnerabilities for packages: py3-langchain-core, py3-langchain...

GHSA-PJWX-R37V-7724 vulnerabilities

Vulnerabilities for packages: py3-langchain-core, py3-langchain...

LangChain Core 1.3.2 / 0.3.84 Tracer Deserialization / Credential Disclosure

LangChain Core has a tracer deserialization vulnerability that could allow unauthenticated remote credential exfiltration in affected deployments. Versions 1.3.2 and 0.3.84 are affected...

Deserialization of Untrusted Data

Overview langchain-core is a Building applications with LLMs through composability Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the load process. An attacker can instantiate trusted classes with untrusted constructor arguments by submitting specially...

📄 LangChain Core Insecure Deserialization

LangChain Core versions prior to 1.2.5 and 0.3.81 suffer from a deserialization vulnerability that allows for server-side template injection that can lead to remote code execution. Exploit Title: LangChain Core - SSTI/RCE Date: 2025-12-29 Exploit Author: Mohammed Idrees Banyamer Author Country:...

LangChain Core 1.2.4 - SSTI/RCE

Exploit Title: LangChain Core - SSTI/RCE Date: 2025-12-29 Exploit Author: Mohammed Idrees Banyamer Author Country: Jordan Contact: @banyamersecurity Instagram GitHub: https://github.com/mbanyamer Vendor Homepage: https://www.langchain.com/ Software Link: https://pypi.org/project/langchain-core/...