{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.syncope:syncope-sra",
          "packageURL": "pkg:maven/org.apache.syncope/syncope-sra",
          "product": "Apache Syncope",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.0.16",
              "status": "affected",
              "version": "3.0.0-M0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.0.7",
              "status": "affected",
              "version": "4.0.0-M0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.1.2",
              "status": "affected",
              "version": "4.1.0-M0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "MopMonk AI"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eImproper verification of cryptographic signature vulnerability in Apache Syncope.\u003c/p\u003e\u003cp\u003eWhen SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.\u003cbr\u003e\u003cbr\u003eThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.\u003c/p\u003e"
            }
          ],
          "value": "Improper verification of cryptographic signature vulnerability in Apache Syncope.\n\n\n\nWhen SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "low"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347 Improper verification of cryptographic signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T10:22:29.574Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/gx83cootj00kn8hqd73x1bp8441np33d"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Syncope: SRA OAuth2 JWT signature verification bypass",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-87802",
    "datePublished": "2026-09-14T10:22:29.574Z",
    "dateReserved": "2026-09-09T10:11:18.664Z",
    "dateUpdated": "2026-09-14T10:22:29.574Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-87802\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2026-09-14T11:17:05.620\",\"lastModified\":\"2026-09-14T11:17:05.620\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper verification of cryptographic signature vulnerability in Apache Syncope.\\n\\n\\n\\nWhen SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.\\n\\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\\n\\n\\n\\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.\"}],\"affected\":[{\"source\":\"security@apache.org\",\"affectedData\":[{\"vendor\":\"Apache Software Foundation\",\"product\":\"Apache Syncope\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://repo.maven.apache.org/maven2\",\"packageName\":\"org.apache.syncope:syncope-sra\",\"packageURL\":\"pkg:maven/org.apache.syncope/syncope-sra\",\"versions\":[{\"version\":\"3.0.0-M0\",\"lessThanOrEqual\":\"3.0.16\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.0.0-M0\",\"lessThanOrEqual\":\"4.0.7\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.1.0-M0\",\"lessThanOrEqual\":\"4.1.2\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread/gx83cootj00kn8hqd73x1bp8441np33d\",\"source\":\"security@apache.org\"}]}}"
  }
}