CVE Watch15 jul 2026

CVE-2026-34070

LangChain is a framework for building agents and LLM-powered applications. Prior to version 1.2.22, multiple functions in langchain_core.pro

CVSS

7.5

Alto

EPSS

1.2%

p65

KEV

—

Exploit Today

0-100

Publicado: 31 mar 2026 · Última mod.: 15 jul 2026 · CWE-22

EPSS · 30d

1.2%EPSS · 30 días1.2%

2026-06-302026-07-16

Descripción técnica

LangChain is a framework for building agents and LLM-powered applications. Prior to version 1.2.22, multiple functions in langchain_core.prompts.loading read files from paths embedded in deserialized config dicts without validating against directory traversal or absolute path injection. When an application passes user-influenced prompt configurations to load_prompt() or load_prompt_from_config(), an attacker can read arbitrary files on the host filesystem, constrained only by file-extension checks (.txt for templates, .json/.yaml for examples). This issue has been patched in version 1.2.22.

Referencias oficiales

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