Unrated severityNVD Advisory· Published Jun 30, 2026· Updated Jul 1, 2026
DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component
CVE-2026-10546
Description
IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the URL component ( src/lfx/src/lfx/components/data_source/url.py ) due to a Time-of-Check/Time-of-Use (TOCTOU) race condition that can be exploited via DNS rebinding.
Patches
Vulnerability mechanics
References
1- www.ibm.com/support/pages/node/7277560mitrevendor-advisorypatch
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