All vulnerabilities
CVE-2026-10134

Langflow OSS: Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows

IBM Langflow OSSApplications & CMS
Open in ThreatlineRecord JSON
CVSS
10.0Critical
ExploitationPublic exploit codeExploit module, 17 Jul 2026. Not in the KEV catalogMetasploit
Exploit odds (EPSS)1.60%Chance of exploitation activity in the next 30 days, higher than 75% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published30 Jun 2026Updated 1 Jul 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 30 Jun 2026, 19:56 UTCPublishedCVE List
  2. 17 Jul 2026Exploit code publicMetasploit

Public exploit code and templates 1

  • Exploit moduleLangflow AI Public Flow Build Unauth RCE 17 Jul 2026Metasploit

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

Description

IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read and modify every flow, conversation, message, file upload, and saved component in the Langflow database, can connect to internal services, abuse cloud metadata endpoints, laterally move to other tenants on the same Langflow instance, and Establish persistence by modifying the public flow's tool_code so normal /api/v1/build/... calls by any user re-execute attacker code at each build.

Text from CVE List

Affected versions 1

  • Langflow OSSaffected: 1.0.0 through 1.9.3CVE List

References 1