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Back to active CVEs
High · CVSS 8.1CVE-2026-82463

pac4j-core before 6.5.6 Authorization Bypass via Reversed Profile Type CheckCVE-2026-82463

Answer in brief

CVE-2026-82463 records a High severity (CVSS 8.1) vulnerability in pac4j-core before 6.5.6 Authorization Bypass via Reversed Profile Type Check. The current sources do not mark it as known exploited. The current feed maps pac4j/pac4j (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 29, 2026Updated Sep 2, 2026Source checked Oct 13, 2026First seen by HOL Aug 29, 2026Material review Sep 2, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.1
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps pac4j/pac4j (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
pac4j/pac4jgeneric>=0 <6.5.66.5.6

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for pac4j/pac4j.
  2. 2Review the reported fix. Update pac4j/pac4j to 6.5.6 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 2, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 29, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencepac4j.org
  • Source referencevulncheck.com
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • CAI Content Credentials | Improper Input Validation (CWE-20)Same generic ecosystem
  • CAI Content Credentials | Improper Access Control (CWE-284)Same generic ecosystem
  • CAI Content Credentials | Improper Access Control (CWE-284)Same generic ecosystem
  • CAI Content Credentials | Improper Certificate Validation (CWE-295)Same generic ecosystem
  • CAI Content Credentials | Improper Input Validation (CWE-20)Same generic ecosystem
  • CAI Content Credentials | Improper Certificate Validation (CWE-295)Same generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-863
Source
CVE List V5
Source checked
Oct 13, 2026
References
5 linked sources
Open source record