CVE-2026-82462 — pac4j-oidc before 6.5.6 Authentication Bypass via Access Token Substitution
pac4j-oidc before 6.5.6 accepts OIDC callbacks carrying only an access token without authorization code or ID token validation. Attackers can substitute access tokens minted for…
Published: 2026-08-29 · CVSS: 6.9 · CVSS 4.0
pac4j-oidc before 6.5.6 accepts OIDC callbacks carrying only an access token without authorization code or ID token validation. Attackers can substitute access tokens minted for other clients to create authenticated sessions without proper issuer, audience, nonce, or subject verification.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7