Vulnerability · Published Sep 4, 2026 · Assigned by ibm
CVE-2026-19304Langflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL validation in multiple components
High 7.7
In plain English
A high-severity server-side request forgery in Langflow OSS from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.4%top 63.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information from internal services due to a URL parser discrepancy.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | Langflow OSS | 1.0.0 – through 1.11.2 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
References
- https://www.ibm.com/support/pages/node/7285639 vendor-advisory, patch