{
  "document": {
    "aggregate_severity": {
      "text": "HIGH"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Open-Xchange GmbH. All rights reserved.",
      "tlp": {
        "label": "GREEN",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution-NoDerivatives 4.0 International License (https://creativecommons.org/licenses/by-nd/4.0/). If you distribute this content, you must provide attribution to Open-Xchange GmbH and provide a link to the original. You may not distribute a modified version of this content.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "name": "Open-Xchange GmbH",
      "namespace": "https://open-xchange.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical CSAF document",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json"
      },
      {
        "category": "self",
        "summary": "Markdown representation",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/md/2025/oxdc-adv-2025-0001.md"
      },
      {
        "category": "self",
        "summary": "HTML representation",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/html/2025/oxdc-adv-2025-0001.html"
      },
      {
        "category": "self",
        "summary": "Plain-text representation",
        "url": "https://documentation.open-xchange.com/dovecot/security/advisories/txt/2025/oxdc-adv-2025-0001.txt"
      }
    ],
    "title": "OX Dovecot Pro Security Advisory OXDC-ADV-2025-0001",
    "tracking": {
      "current_release_date": "2025-10-31T00:00:00+00:00",
      "generator": {
        "date": "2025-10-31T09:24:49+00:00",
        "engine": {
          "name": "OX CSAF",
          "version": "1.0.0"
        }
      },
      "id": "OXDC-ADV-2025-0001",
      "initial_release_date": "2025-10-31T00:00:00+02:00",
      "revision_history": [
        {
          "date": "2025-10-31T00:00:00+02:00",
          "number": "1",
          "summary": "Initial release"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "2",
          "summary": "Public release"
        },
        {
          "date": "2025-10-31T00:00:00+02:00",
          "number": "3",
          "summary": "Fix versions"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "4",
          "summary": "Public release"
        },
        {
          "date": "2025-10-31T00:00:00+00:00",
          "number": "5",
          "summary": "Public release"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.4.0",
                "product": {
                  "name": "Dovecot CE 2.4.0",
                  "product_id": "OXDC-CE_2.4.0",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:open-xchange:dovecot:2.4.0:*:*:*:*:*:*:*"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "2.4.2",
                "product": {
                  "name": "Dovecot CE 2.4.2",
                  "product_id": "OXDC-CE_2.4.2",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:open-xchange:dovecot:2.4.2:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Dovecot CE"
          }
        ],
        "category": "vendor",
        "name": "Open-Xchange GmbH"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Erik  \u003cerik@broadlux.com\u003e"
          ]
        }
      ],
      "cve": "CVE-2025-30189",
      "cwe": {
        "id": "CWE-1250",
        "name": "Improper Preservation of Consistency Between Independent Representations of Shared State"
      },
      "discovery_date": "2025-07-25T01:04:36+03:00",
      "ids": [
        {
          "system_name": "JIRA OX Bug",
          "text": "DOV-7830"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users."
        }
      ],
      "product_status": {
        "first_fixed": [
          "OXDC-C_2.4.2"
        ],
        "last_affected": [
          "OXDC-CE_2.4.0"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-10-29T00:00:00+02:00",
          "details": "Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers.",
          "product_ids": [
            "OXDC-CE_2.4.0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "OXDC-CE_2.4.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "After cached login, all subsequent logins are for same user."
        },
        {
          "category": "exploit_status",
          "details": "No publicly available exploits are known."
        }
      ],
      "title": "v2.4 regression: auth cache broken with several passdb / userdb"
    }
  ]
}