gcdRadar
archive/Patch now/AIR-2025-0444
closedclosed 29 Jul 2025Patch now2 Disclosed vulnerabilityAI

Indirect Prompt Injection in LangChain GmailToolkit

langchain

An indirect prompt injection vulnerability was reported in the LangChain GmailToolkit component, though the vendor disputed it as user implementation error. The issue involves crafted emails leading to application compromise.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
9.8
EPSS
0.01 · top 42% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
29 Jul 2025
last update
29 Jul 2025
CVE ids
CVE-2025-46059other records

Timeline · 1

  1. 29 Jul 2025CVE-2025-46059: langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit component.

Sources · 1

Advisories and databases

  1. 2025-07-29
    CVE-2025-46059: langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit component.
    NVD · nvd.nist.gov/vuln/detail/CVE-2025-46059

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Prompt injectionInfrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM01:2025 Prompt InjectionLLM03:2025 Supply Chain
mitre atlas
AML.T0051 LLM Prompt Injection
tags
prompt-injectionlangchain
dates
happened 29 Jul 2025 · first reported 29 Jul 2025
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# Indirect Prompt Injection in LangChain GmailToolkit

https://gcdradar.vercel.app/incidents/indirect-prompt-injection-in-langchain-gmailtoolkit · AIR-2025-0444 · closed 2025-07-29

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-07-29
- AI role: Attack on AI
- Products: langchain
- CVE ids: CVE-2025-46059
- CVSS: 9.8

## Summary

An indirect prompt injection vulnerability was reported in the LangChain GmailToolkit component, though the vendor disputed it as user implementation error. The issue involves crafted emails leading to application compromise.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-07-29: CVE-2025-46059: langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit component. (https://nvd.nist.gov/vuln/detail/CVE-2025-46059)

## Sources

- 2025-07-29 NVD: CVE-2025-46059: langchain-ai v0.3.51 was discovered to contain an indirect prompt injection vulnerability in the GmailToolkit component. https://nvd.nist.gov/vuln/detail/CVE-2025-46059

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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