CVE-2026-10560 Unauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS
Unauthenticated attackers can read private build events and cancel jobs in Langflow OSS, leading to information disclosure and service disruption.
- 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-2026-10560?
CVE-2026-10560 is a high-severity missing authorization vulnerability in Langflow Langflow, published on 30 Jun 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 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.
Weakness: CWE-287
Which versions are affected by CVE-2026-10560?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-10560?
No fix has been published for CVE-2026-10560 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-10560 being exploited?
There is no known exploitation of CVE-2026-10560 in the wild and no public exploit code.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-w636-w53p-5frh.