simplesamlphp/saml2-legacy vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary

CVE-2026-49289Highsimplesamlphp/saml2: SimpleSAMLphp has Possible DoS via XPath Transform CVE-2026-49283Highsimplesamlphp/saml2: SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass CVE-2025-27773Highsimplesamlphp/saml2: The SimpleSAMLphp SAML2 library incorrectly verifies signatures for HTTP-Redirect binding CVE-2024-52806Mediumsimplesamlphp/saml2: SimpleSAMLphp SAML2 has an XXE in parsing SAML messages

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