CVE-2026-10546CWE-918

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

High · published June 30, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
15.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00247 · 15.1th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-06-30T19:54Z
EPSS history
Timeline
  • 30 JUN 19:54Z
    DNS Rebinding TOCTOU Bypass of SSRF Protection in Langflow OSS URL Component
    cvelistv5