CVE-2026-10546 HIGH

CVE-2026-10546: DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component

Vendor Ibm
Product Langflow OSS
Weakness CWE-918 · SSRF
Published June 30, 2026
Last update July 1, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 30, 2026 CVE published
July 1, 2026 Record updated