CVE-2025-46784 Denial of service in Lasso
An attacker can cause a denial of service in Entr'ouvert Lasso by sending a specially crafted SAML response that triggers memory depletion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-46784?
CVE-2025-46784 is a high-severity denial of service vulnerability in Entr'ouvert Lasso, published on 5 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial of service vulnerability exists in the lasso_node_init_from_message_with_format functionality of Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can lead to a memory depletion, resulting in denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.
Weakness: CWE-401
Which versions are affected by CVE-2025-46784?
It affects 1 product.
Products include Entrouvert Lasso.
How do I fix CVE-2025-46784?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-46784 being exploited?
There is no known exploitation of CVE-2025-46784 in the wild and no public exploit code.
Other vulnerabilities in Entr'ouvert Lasso
Sources
Also known as AZL-69847, AZL-69860, DEBIAN-CVE-2025-46784, GHSA-4p4q-6835-5w79, UBUNTU-CVE-2025-46784.