Apache Answer: Authorization Bypass in Timeline API

{
  "id": "8c57bd26b1399f7e1681ecd425198a2779fe3d563b83d8933b3f7f6797eb380e",
  "url": "https://osv.dev/vulnerability/CVE-2026-25699",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Apache Answer: Authorization Bypass in Timeline API",
    "summary": "Exposure of Private Personal Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. Timeline-related APIs lacked proper authorization checks, allowing regular authenticated users to access deleted, private, or unapproved content and its revision history. Users are recommended to upgrade to version 2.0.1, which fixes the issue.",
    "evidence": "osv:CVE-2026-25699",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-25699",
      "aliases": [
        "CVE-2026-25699",
        "GHSA-w754-5646-xq9j",
        "GO-2026-6148"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/answer",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2746bf5b455fa67f1bec6178c75121397a3816f5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.1-RC1",
            "v2.0.0-RC2",
            "v2.0.0",
            "v2.0.0-RC1",
            "v1.7.0-RC1",
            "v1.7.0",
            "v1.6.0",
            "v1.6.0-RC1",
            "v1.2.1-RC1",
            "v1.2.1",
            "v1.2.0-RC1",
            "v1.2.0",
            "v1.1.3",
            "v1.1.2",
            "v1.1.1",
            "v1.0.9",
            "v1.0.8",
            "v1.0.7",
            "v1.0.6",
            "v1.0.5",
            "v1.0.4",
            "v1.0.3",
            "v1.0.1",
            "v0.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25699.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.792026415Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25699.json",
        "https://lists.apache.org/thread/c36k4hzwhncqo0qfn5fg57f1gkjhyfv8",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-25699"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-359"
        ],
        "cna_assigner": "apache",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "2.0.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25699.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-25699",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521898,
  "published_at": "2026-06-09T07:33:18.349+00:00"
}