CVE-2026-10134

Critical

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.

SeverityCritical
CVSS10.0
Exploit probability—
ProductLangflow
PublishedJun 30, 2026
First seenJun 30, 2026

How to fix

Affected products

ProductAffected versionsFixed in
langflow langflow1.0.0 ≤ v ≤ 1.9.3—

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