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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python3-lassoUpgrade lasso-develUpgrade lasso-debuginfoUpgrade lasso | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade lasso | Nov 10, 2025 | Nov 10, 2025 |
| Suse | — | Upgrade python3-lassoUpgrade liblasso3Upgrade liblasso-devel | Dec 5, 2025 | Nov 13, 2025 |
| Ubuntu | — | Upgrade liblasso3t64Upgrade liblasso-perlUpgrade liblasso3Upgrade python3-lasso | Nov 19, 2025 | Nov 5, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Nov 5, 2025 |
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