CVE-2026-34070

01/תיאור (מקור, אנגלית)

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.

02/מוצרים מושפעים

langchain: langchain core

03/קישורים10

• github.com/langchain-ai/langchain/security/advisories/GHSA-qh6‮… ExploitVendor Advisory
• github.com/langchain-ai/langchain/security/advisories/GHSA-qh6‮… ExploitVendor Advisory
• github.com/langchain-ai/langchain/commit/27add913474e01e33bede‮… Patch
• github.com/langchain-ai/langchain/releases/tag/langchain-core=‮… Release Notes
• access.redhat.com/errata/RHSA-2026:24766
• access.redhat.com/errata/RHSA-2026:37275
• access.redhat.com/errata/RHSA-2026:59159
• access.redhat.com/security/cve/CVE-2026-34070
• bugzilla.redhat.com/show_bug.cgi?id=2453287
• security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3407‮…