CVE-2025-46059: langchain-ai GmailToolkit indirect prompt injection via crafted email

Summary

CVE-2025-46059 describes an indirect prompt injection flaw in the GmailToolkit component of langchain-ai v0.3.51. According to the description, a crafted email message can lead attackers to execute arbitrary code and compromise the application. The supplier disputes the entry, stating that the code-execution issue comes from user-written code that does not follow LangChain security practices.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Topics

• Prompt injection and jailbreaks

Related items

• MediumGHSA-8prr-f582-jqq3: LangGraph CLI prints the registry push token in `langgraph deploy --verbose` outputSame vendor · GitHub Advisory Database
• HighGHSA-4hm6-w6qq-w73v: LangGraph JavaScript custom authentication may permit cross-user Store accessSame vendor · GitHub Advisory Database
• MediumGHSA-3fx2-cqw9-xr3c: LangGraph: Unencoded identifiers in LangGraph SDK v3 streaming can redirect authenticated GET requestsSame vendor · GitHub Advisory Database
• MediumGHSA-6hmw-9432-67qq: LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite storesSame vendor · GitHub Advisory Database
• MediumCVE-2026-108575: BerriAI LiteLLM improper authorization in secret resolution via api_keySame vendor · NVD/CVE Database