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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Sat, 29 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
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.
Title pac4j-core before 6.5.6 Open Redirect via Backslash Logout
First Time appeared Pac4j
Pac4j pac4j
Weaknesses CWE-601
CPEs cpe:2.3:a:pac4j:pac4j:*:*:*:*:*:*:*:*
Vendors & Products Pac4j
Pac4j pac4j
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-29T16:35:27.609Z

Reserved: 2026-08-29T14:11:01.292Z

Link: CVE-2026-82464

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-29T17:17:58.640

Modified: 2026-08-29T17:17:58.640

Link: CVE-2026-82464

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-29T17:30:12Z

Weaknesses