CVE-2026-10546
DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component
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.
INFO
Published Date :
June 30, 2026, 7:54 p.m.
Last Modified :
June 30, 2026, 7:54 p.m.
Remotely Exploit :
Yes !
Source :
ibm
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 9a959283-ebb5-44b6-b705-dcc2bbced522 |
Solution
- Update IBM Langflow to version 1.9.4 or later.
- Apply vendor patches when available.
- Restrict network access to sensitive internal resources.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-10546 vulnerability anywhere in the article.