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 other clients to create authenticated sessions without proper issuer, audience, nonce, or subject verification...

CVE-2026-82463

pac4j-core (a Java-based authentication and authorization library) versions prior to 6.5.6 are affected by an authentication bypass in CheckProfileTypeAuthorizer . The root cause is reversed profile type validation logic , which allows an attacker authenticated via a weaker client (e.g., generic ...

EUVD-2026-68119

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...

CVE-2026-82461

pac4j-oidc versions before 6.5.6 fail to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles via the KeycloakRolesAuthorizationGenerator component. Attackers with low privileges can forge access tokens containing administrative roles paire...

CVE-2026-82461 pac4j-oidc before 6.5.6 Privilege Escalation via Unverified Keycloak Access Token

pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications relying on pac4j...

CVE-2026-82461 pac4j-oidc before 6.5.6 Privilege Escalation via Unverified Keycloak Access Token

pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications relying on pac4j...

EUVD-2026-68118

pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting Keycloak realm and client roles. Attackers can forge access tokens with administrative roles paired with valid ID tokens to bypass authorization checks in applications relying on pac4j...

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-2026-40459

PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted LDAP syntax into ID-based search parameters, potentially resulting in unauthorized LDAP queries and arbitrary directory operations. This issue was fixed in PAC4J versions 4.5.10, 5.7.10...

Exploit for CVE-2026-29000

Lab Demo CVE-2026-29000: pac4j-jwt Authentication Bypass Môi...

Exploit for CVE-2026-29000

CVE-2026-29000: pac4j JWT Authentication Bypass PoC Proof...

Exploit for CVE-2026-29000

🚀 CVE-2026-29000 - pac4j-jwt Authentication Bypass Exploit !...

Exploit for CVE-2026-29000

HackTheBox — Principal Difficulty: Medium OS: Linux...

Exploit for CVE-2026-29000

pac4j-jwe-forge CVE-2026-29000 Proof-of-concept for CVE-202...

LDAP Injection

Overview Affected versions of this package are vulnerable to LDAP Injection in the LdapProfileService class, which accepts ID-based search parameters in multiple methods. A privileged attacker can execute unauthorized LDAP queries and perform arbitrary directory operations. Remediation Upgrade...

EUVD-2026-23423

PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted LDAP syntax into ID-based search parameters, potentially resulting in unauthorized LDAP queries and arbitrary directory operations. This issue was fixed in PAC4J versions 4.5.10, 5.7.10...

GHSA-XW5C-JC7X-GF75 PAC4J has a Cross-Site Request Forgery (CSRF) Vulnerability

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...

Cross-site Request Forgery (CSRF)

Overview org.pac4j:pac4j-core is a pac4j is an easy and powerful security engine for Java to authenticate users, get their profiles and manage authorizations in order to secure web applications and web services. Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF d...

CVE-2026-40459

PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted LDAP syntax into ID-based search parameters, potentially resulting in unauthorized LDAP queries and arbitrary directory operations. This issue was fixed in PAC4J versions 4.5.10, 5.7.10...

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...