CVE-2025-46705 Denial of service in Lasso
An attacker can cause a denial of service in the Lasso SAML library by sending a specially crafted SAML assertion response.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-46705?
CVE-2025-46705 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 g_assert_not_reached functionality of Entr'ouvert Lasso 2.5.1 and 2.8.2. A specially crafted SAML assertion response can lead to a denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.
Weakness: CWE-617
Which versions are affected by CVE-2025-46705?
It affects 1 product.
Products include Entrouvert Lasso.
How do I fix CVE-2025-46705?
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-2025-46705 being exploited?
There is no known exploitation of CVE-2025-46705 in the wild and no public exploit code.
Other vulnerabilities in Entr'ouvert Lasso
Sources
Also known as AZL-69844, AZL-69857, CLSA-2026-1787329313, CLSA-2026-1787331325, DEBIAN-CVE-2025-46705, GHSA-pmj8-xcc6-hfrp and 1 more.