CVE-2026-27966: Langflow Remote Code Execution in CSV Agent
Attack on AI2 Disclosed vulnerabilityPrompt injectionAgent hijackInfrastructure vulnerability
Langflow hardcodes dangerous code execution in its CSV Agent node, enabling remote code execution via prompt injection. Users are advised to upgrade to patched versions.
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
Details
- type
- Attack on AIAn AI model, agent or AI-powered product was the thing exploited, abused or leaked.
- categories
- Prompt injectionprimaryUntrusted content (web pages, documents, emails, tool output) steers a model into ignoring its instructions.
- Agent hijackAn AI agent is tricked into unauthorized actions: tool misuse, data exfiltration through the agent, or acting against its principal.
- Infrastructure vulnerabilityCVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
- Prompt injectionprimary
- mitre atlas
- Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
- severity
- 2 · Disclosed vulnerabilityCVE or vendor advisory, patched or patchable, no confirmed exploitation.
- targets
- Framework / tooling
- products
- Langflow, LangChain
- incident date
- 27 Feb 2026
- first reported
- 26 Feb 2026
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- classifier confidence
- 0.95 · published at or above 0.80; see the methodology
- tags
- CVE-2026-27966 · rce · langflow
- record
- created 2026-10-18 07:00Z · updated 2026-10-18 10:04Z · json
Sources · 2
- 2026-02-26CVE-2026-27966: Langflow is a tool for building and deploying AI-powered agents and workflows.NVD · nvd.nist.gov/vuln/detail/CVE-2026-27966
- 2026-02-27CVE-2026-27966: Langflow has Remote Code Execution in CSV AgentGitHub Advisory Database · github.com/advisories/GHSA-3645-fxcv-hqr4
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