CVE-2026-40458

PAC4J is vulnerable to Cross-Site Request Forgery CSRF. A malicious attacker can craft a specially designed website which, when visited by a user, will automatically submit a forged cross-site request with a token whose hash collides with the victim's legitimate CSRF token. Importantly, the...

CVE-2023-25581

The CVE-2023-25581 entry concerns pac4j-core before 4.0.0, where a Java deserialization vulnerability in UserProfile attributes can be triggered by a serialized object with a {#sb64} prefix and Base64 encoding, potentially leading to RCE. Affected versions are prior to 4.0.0; 4.0.0 and later are ...