Packagist/simplesamlphp/saml2-legacy CVE-2026-49283: high 8.7, EPSS 0.47%
SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass
Action: Upgrade simplesamlphp/saml2-legacy to 4.19.3 or later.
composer require simplesamlphp/saml2-legacy:4.20.2composer require simplesamlphp/saml2-legacy:4.19.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 4.20.0 | 4.20.2 | - |
| 0 | 4.19.3 | - |
Fixed versions
| 4.20.2 | 4.19.3 |
Sources
- osv: GHSA-6929-8p9f-26jx#Packagist/simplesamlphp/saml2-legacy
- https://github.com/simplesamlphp/saml2/security/advisories/GHSA-6929-8p9f-26jx
- https://github.com/simplesamlphp/saml2
CVE-2026-49283 · published · modified · JSON