High · published November 5, 2025
⚡ A crafty SAML assertion can knock your service offline! A simple malformed response is the key to triggering a denial of service in Entr'ouvert Lasso 2.5.1 and 2.8.2. 🔥 Think of it like a restaurant receiving an order that’s not just wrong, but totally incomprehensible – the kitchen gets so confused trying to figure it out that they stop serving food entirely! An attacker could disrupt your service entirely by sending a malformed SAML response, leaving users unable to authenticate or access vital resources. This could result in downtime that frustrates users and impacts your organization's reputation.
Think of it like a restaurant receiving an order that’s not just wrong, but totally incomprehensible – the kitchen gets so confused trying to figure it out that they stop serving food entirely! This denial of service vulnerability exists in the g_assert_not_reached functionality, where a specially crafted SAML assertion response can cause the application to halt its operations during processing, leading to a service outage.
An attacker could disrupt your service entirely by sending a malformed SAML response, leaving users unable to authenticate or access vital resources. This could result in downtime that frustrates users and impacts your organization's reputation. To mitigate this risk, upgrade to Entr'ouvert Lasso version 2.5.2 or 2.8.3, which contain fixes for this vulnerability. Regularly audit your SAML assertions for integrity to prevent malformed inputs from slipping through. You've got this! Patch up, and you’ll keep your service running smoothly! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| entrouvert/lasso | all versions | — |
| entrouvert/lasso | all versions | — |