CVE-2026-10546
DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | ibm |
| Product | langflow oss |
| Published | Jun 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
IBM / Langflow OSS
1.0.0 ≤ 1.9.3