CVE-2026-19301 Server-side request forgery in Langflow OSS
Remote authenticated attackers can exploit missing URL validation in Langflow OSS to perform server-side request forgery and access sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19301?
CVE-2026-19301 is a medium-severity server-side request forgery vulnerability in Langflow Langflow, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery.
Weakness: CWE-918
Which versions are affected by CVE-2026-19301?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-19301?
No fix has been published for CVE-2026-19301 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-19301 being exploited?
There is no known exploitation of CVE-2026-19301 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-55jv-gc65-vxhp.