{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-5430",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-5430",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-06T07:33:28.156Z",
    "updatedAt": "2026-09-25T03:55:16.285Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account Takeover",
      "summary": "The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker to craft a JWT with an unsupported algorithm, which is then incorrectly validated, leading to unauthorized access.\n\nSuccessful exploitation of this vulnerability may result in unauthorized access to the system, including the potential compromise of administrative accounts and full account takeover. The CVSS score is adjusted to 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) in single-tenant deployments, reflecting that the impact is contained within a single security authority boundary.",
      "affected": [
        {
          "vendor": "WSO2",
          "product": "WSO2 Universal Gateway",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.5.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.5.0.57"
            },
            {
              "version": "4.6.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.6.0.21"
            }
          ]
        },
        {
          "vendor": "WSO2",
          "product": "WSO2 Traffic Manager",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.5.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.5.0.56"
            },
            {
              "version": "4.6.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.6.0.21"
            }
          ]
        },
        {
          "vendor": "WSO2",
          "product": "WSO2 API Control Plane",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4.5.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.5.0.58"
            },
            {
              "version": "4.6.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.6.0.22"
            }
          ]
        },
        {
          "vendor": "WSO2",
          "product": "WSO2 API Manager",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "unknown",
              "versionType": "custom",
              "lessThan": "4.1.0"
            },
            {
              "version": "4.1.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.1.0.257"
            },
            {
              "version": "4.2.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.2.0.197"
            },
            {
              "version": "4.3.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.3.0.108"
            },
            {
              "version": "4.4.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.4.0.72"
            },
            {
              "version": "4.5.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.5.0.57"
            },
            {
              "version": "4.6.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "4.6.0.21"
            }
          ]
        },
        {
          "vendor": "WSO2",
          "product": "WSO2 Carbon API Manager Rest API Utility",
          "packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.util",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "9.20.74",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.20.74.401"
            },
            {
              "version": "9.28.116",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.28.116.417"
            },
            {
              "version": "9.29.120",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.29.120.236"
            },
            {
              "version": "9.30.67",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.30.67.167"
            },
            {
              "version": "9.31.86",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.31.86.158"
            },
            {
              "version": "9.32.147",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "9.32.147.59"
            },
            {
              "version": "9.33.106",
              "status": "unaffected",
              "versionType": "custom",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}