CriticalVulnerabilityLLM-specific

CVE-2024-8309: langchain GraphCypherQAChain SQL injection through prompt injection

Source: NVD(opens in a new tab)
Identifier: CVE-2024-8309
Published: October 29, 2024
Record updated: October 9, 2026

Affected: langchain < 0.2.0, fixed in 0.2.0, released May 17, 2024, 165 days before disclosure
langchain-community >= 0.2.0, < 0.2.19, fixed in 0.2.19, released November 12, 2024, 14 days after disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 13.7%

Summary

CVE-2024-8309 affects the GraphCypherQAChain class of langchain-ai/langchain version 0.2.5. Attackers can use prompt injection to trigger SQL injection, allowing them to create, update, or delete nodes and relationships without authorization, extract sensitive data, and disrupt service. The flaw can also reach data across tenants in multi-tenant environments and compromise database integrity.

Mitigation

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

Details

Scores and exploitation

CVSS score: 9.8(critical)
Patch available: Yes
EPSS: 13.7%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.

Weaknesses and techniques

Weakness (CWE): CWE-89
CWE-74
Attack pattern (CAPEC): CAPEC-66
AI threat technique (MITRE ATLAS): AML.T0051

Affected

Packages: langchain@< 0.2.0 (fixed: 0.2.0)
langchain-community@>= 0.2.0, < 0.2.19 (fixed: 0.2.19)
Vendors: LangChain

Classification

Attack type: Prompt injection,
Other
Attack sophistication: Trivial
AI component targeted: RAG
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2024-8309

First tracked: February 15, 2026 at 08:35 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 95% (self-assessed)

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

langchainPyPILLM dependency since 2022-10-25 · 31 tracked dependents
langchain-communityPyPILLM dependency since 2023-12-08 · 27 tracked dependents

Summary

Mitigation

Affected packages in the Exposure Registry

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