CVE-2026-34070: falha de alta gravidade em langchain-ai langchain
LangChain Core has Path Traversal vulnerabilites in legacy `load_prompt` functions
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 1.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Produtos afetados
langchain-ai · langchainCVEs relacionadas — langchain-ai langchain
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Referências
https://access.redhat.com/errata/RHSA-2026:24766https://access.redhat.com/errata/RHSA-2026:37275https://access.redhat.com/errata/RHSA-2026:59159https://access.redhat.com/security/cve/CVE-2026-34070https://bugzilla.redhat.com/show_bug.cgi?id=2453287https://github.com/langchain-ai/langchain/commit/27add913474e01e33bededf4096151130ba0d47chttps://github.com/langchain-ai/langchain/releases/tag/langchain-core==1.2.22https://github.com/langchain-ai/langchain/security/advisories/GHSA-qh6h-p6c9-ff54https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34070.json