Medium severity6.1NVD Advisory· Published Aug 29, 2026
CVE-2026-82464
CVE-2026-82464
Description
pac4j-core before 6.5.6 contains an open redirect vulnerability in DefaultLogoutLogic.perform() that accepts backslash-prefixed logout redirect targets matching logoutUrlPattern. Attackers can craft logout links with backslash-prefixed external hosts that browsers normalize into network-path references, redirecting victims to attacker-controlled sites after logout.
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References
4- github.com/pac4j/pac4j/blob/pac4j-parent-6.5.5/pac4j-core/src/main/java/org/pac4j/core/engine/DefaultLogoutLogic.javanvd
- github.com/pac4j/pac4j/commit/2270c3ff70e93cc43831e75702acd5135531237envd
- www.pac4j.org/blog/security-advisory-pac4j-core-oidc-saml.htmlnvd
- www.vulncheck.com/advisories/pac4j-core-before-6.5.6-open-redirect-via-backslash-logoutnvd
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