Apache Vysper: Authorization bypass

{
  "id": "796386b06be906bc62b37fb29debd96edbf0be5613c0bf7e01d7d77c364eddf0",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-115748",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Apache Vysper: Authorization bypass",
    "summary": "**UNSUPPORTED WHEN ASSIGNED** Authorization bypass in Apache Vysper, all versions. Apache Vysper is an XMPP (Jabber) server library. Its XEP-0077 (In-Band Registration) implementation is missing an authentication check, allowing any authenticated user to compromise other accounts. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative.",
    "evidence": "cve:CVE-2026-115748",
    "products": [
      {
        "name": {
          "value": "Apache Vysper",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-115748",
      "aliases": [
        "CVE-2026-115748"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 8.8,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "HIGH"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "other": {
            "type": "Textual description of severity",
            "content": {
              "text": "important"
            }
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Vysper",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "maven",
              "lessThanOrEqual": "*"
            }
          ],
          "packageURL": "pkg:maven/org.apache.vysper/vysper",
          "packageName": "org.apache.vysper:vysper",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T15:34:11.951Z",
      "provider": "cve",
      "references": [
        "https://mina.apache.org/vysper-project/",
        "https://lists.apache.org/thread.html/979n9lzg10vc7tdrrlgy4lh5yrsw8wsj"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CVE Program Container",
            "references": [
              {
                "url": "http://www.openwall.com/lists/oss-security/2026/10/23/21"
              }
            ],
            "providerMetadata": {
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE",
              "dateUpdated": "2026-10-26T15:34:11.951Z"
            }
          }
        ],
        "cna": {
          "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
          "shortName": "apache",
          "dateUpdated": "2026-10-26T15:01:40.644Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-115748",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 316065,
  "published_at": "2026-10-26T15:01:40.644+00:00"
}