CVE-2026-10134
Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows
- Published
- Jun 30, 2026
- Updated
- Jul 1, 2026
- Assigning CNA
- ibm
- Evidence observed
- Sep 4, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HLow · next 30 days
- Percentile
- 49.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Proof-of-concept exploit for CVE-2026-10134 in Langflow, allowing authenticated remote command execution via crafted requests.
Responsible use
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