CVE-2026-55615: Langroid is a framework for building large-language-model-powered applications. Prior to version 0.65.5, Neo4jChatAgent passes LLM-generated Cypher queries straight to the Neo4j dr
Langroid is a framework for building large-language-model-powered applications. Prior to version 0.65.5, Neo4jChatAgent passes LLM-generated Cypher queries straight to the Neo4j driver with no validation, no statement-type allowlist, and no opt-out gate. The query text is influenceable by prompt injection (direct user input or indirect content the agent reads back via RAG), so an attacker who can influence the prompt can read or destroy all graph data and, when APOC or dbms.security procedures are enabled on the server, achieve OS-command and filesystem access. This is the same defect class and threat model as the SQLChatAgent prompt-to-SQL-to-RCE issue fixed in version 0.63.0 (CVE-2026-25879); that fix did not extend to the neo4j module. Version 0.65.5 contains a fix for the neo4j module.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-55615
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-556150.46% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-55615 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Langroid is a
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-54771: Langroid is a framework for building large-language-model-powered applications. Prior to versi…nvd · 2026-07-10
- criticalCVE-2026-54769: Langroid is a framework for building large-language-model-powered applications. Versions prior…nvd · 2026-07-10
- unknownCVE-2026-54760: Langroid is a framework for building large-language-model-powered applications. Prior to versi…nvd · 2026-07-10
- highCVE-2026-50181: Langroid is a framework for building large-language-model-powered applications. Prior to versi…nvd · 2026-07-10
- unknownCVE-2026-50180: Langroid is a framework for building large-language-model-powered applications. Prior to versi…nvd · 2026-07-10
- criticalGHSA-2pq5-3q89-j7cc: Langroid: Neo4jChatAgent executes LLM-generated Cypher without validation (prompt-to-Cyph…ghsa · 2026-07-06
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