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OpenAdvisories
High · 7.1 CVE-2026-10546 EUVD-2026-40402GHSA-phxc-h9ch-q3gg

DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component

Published Jun 30, 2026 · Updated Jul 1, 2026 · Assigned by ibm

Vendor: IBM Product: Langflow OSS

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.

Affected products

VendorProductAffectedFixed
IBM Langflow OSS 1.0.0 – ≤ 1.9.3 —

References