{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:apache:apr-util:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "1.2.0"
              },
              {
                "fixed": "1.6.4"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "345398c35e276f4ab0fd8aa3bd94949292cf5638"
            }
          ],
          "repo": "https://github.com/apache/apr-util",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "cwe_ids": [
      "CWE-208"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49506.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "1.2.0"
          },
          {
            "last_affected": "1.6.3"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as  Windows, BeOS, NetWare, or Android.\n\nUsers are recommended to upgrade to version 1.6.4, which fixes this issue.",
  "id": "CVE-2025-49506",
  "modified": "2026-08-09T03:30:27.274051678Z",
  "published": "2026-08-06T14:33:12.957Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/06/8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49506.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49506"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Portable Runtime Utility: apr_password_validate() vulnerable to timing attack"
}