PT-2026-83442 · Unknown · Pac4J-Oidc
CVSS v4.0
6.9
Medium
| Vector | AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
pac4j-oidc versions prior to 6.5.6
Description
The software accepts OpenID Connect (OIDC) callbacks that contain only an access token, bypassing the required authorization code or ID token validation. This allows attackers to use access tokens intended for different clients to establish authenticated sessions because the system fails to verify the issuer, audience, nonce, or subject.
Recommendations
Update pac4j-oidc to version 6.5.6 or later.
Exploit
Fix
Insufficient Verification of Data Authenticity
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Weakness Enumeration
Related Identifiers
Affected Products
Pac4J-Oidc