CVE-2026-82463 (GCVE-0-2026-82463)
Vulnerability from cvelistv5
Published
2026-08-29 16:35
Modified
2026-08-29 16:35
CWE
  • CWE-863 - Incorrect Authorization
Summary
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.
Impacted products
Vendor Product Version
pac4j pac4j Version: 0   
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/org.pac4j/pac4j-parent",
          "product": "pac4j",
          "vendor": "pac4j",
          "versions": [
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              "lessThan": "6.5.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
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      "cpeApplicability": [
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                  "versionEndExcluding": "6.5.6",
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                }
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              "negate": false,
              "operator": "OR"
            }
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      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Joshua Rogers (AISLE Research)"
        }
      ],
      "datePublic": "2026-08-24T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-29T16:35:26.904Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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      "references": [
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
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          "url": "https://github.com/pac4j/pac4j/commit/2270c3ff70e93cc43831e75702acd5135531237e"
        },
        {
          "name": "pac4j Security Advisory for pac4j-core, pac4j-oidc and pac4j-saml",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.pac4j.org/blog/security-advisory-pac4j-core-oidc-saml.html"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/pac4j/pac4j/blob/pac4j-parent-6.5.5/pac4j-core/src/main/java/org/pac4j/core/authorization/authorizer/CheckProfileTypeAuthorizer.java"
        },
        {
          "tags": [
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          "url": "https://github.com/pac4j/pac4j"
        },
        {
          "name": "VulnCheck Advisory: pac4j-core before 6.5.6 Authorization Bypass via Reversed Profile Type Check",
          "tags": [
            "third-party-advisory"
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          "url": "https://www.vulncheck.com/advisories/pac4j-core-before-6.5.6-authorization-bypass-via-reversed-profile-type-check"
        }
      ],
      "title": "pac4j-core before 6.5.6 Authorization Bypass via Reversed Profile Type Check",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82463",
    "datePublished": "2026-08-29T16:35:26.904Z",
    "dateReserved": "2026-08-29T14:11:00.955Z",
    "dateUpdated": "2026-08-29T16:35:26.904Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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