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    CVE-2026-82463

    pac4j-core before 6.5.6 contains an authentication bypass vulnerability in CheckProfileTypeAuthorizer that reverses the profile type validation logic. Attackers can authenticate through a weaker client and access resources requiring a stronger profile type by satisfying generic profile checks.

    Published:Aug 29, 2026
    Last Modified:Sep 2, 2026
    EPS:Aug 29, 2026
    EPSS Score:0.00304
    CVSS Score:8.1

    Affected Products

    Vendor
    Pac4j
    Product
    Pac4j

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-82462 (CVSS 6.9) — pac4j-oidc before 6.5.6 accepts OIDC callbacks carrying only an access token without authorization code or ID …
    CVE-2026-82461 (CVSS 8.6) — pac4j-oidc before 6.5.6 fails to verify access token signatures, issuers, audiences, or expiry when extracting…
    CVE-2026-40459 (CVSS 8.7) — PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted…
    CVE-2026-40458 (CVSS 7) — PAC4J is vulnerable to Cross-Site Request Forgery (CSRF). A malicious attacker can craft a specially designed …
    CVE-2026-29000 (CVSS 9.3) — pac4j-jwt versions prior to 4.5.9, 5.7.9, and 6.3.3 contain an authentication bypass vulnerability in JwtAuthe…
    CVE-2023-25581 (CVSS 9.2) — pac4j is a security framework for Java. `pac4j-core` prior to version 4.0.0 is affected by a Java deserializat…
    CVE-2021-44878 (CVSS 7.5) — If an OpenID Connect provider supports the "none" algorithm (i.e., tokens with no signature), pac4j v5.3.0 (an…
    CVE-2019-10755 (CVSS 4.9) — The SAML identifier generated within SAML2Utils.java was found to make use of the apache commons-lang3 RandomS…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High