langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit component. This vulnerability allows attackers to execute arbitrary code and compromise the application via a crafted email message. NOTE: this is disputed by the Supplier because the code-execution issue was introduced by user-written code that does not adhere to the LangChain security practices.
https://python.langchain.com/docs/security/
https://github.com/langchain-ai/langchain/issues/30833
https://github.com/langchain-ai/langchain-community/issues/217#issuecomment-3144824471
https://github.com/Jr61-star/CVEs/blob/main/CVE-2025-46059.md