CVE-2026-12767 Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches
Unauthenticated attackers can exploit missing egress validation to perform server-side request forgery, enabling network enumeration and facilitating further attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12767?
CVE-2026-12767 is a medium-severity server-side request forgery vulnerability in IBM Langflow OSS, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM Langflow OSS 1.0.0 through 1.11.5 is vulnerable to server-side request forgery (SSRF). This may allow an unauthenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Weakness: CWE-918
Which versions are affected by CVE-2026-12767?
How do I fix CVE-2026-12767?
No fix has been published for CVE-2026-12767 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-2026-12767 being exploited?
There is no known exploitation of CVE-2026-12767 in the wild and no public exploit code.
Sources
Also known as GHSA-jvmc-mxmx-5qwq.