Security advisory

{
  "id": "0bbd2c1b5eb696bd2b1da9feefc65a5a39020fb8ca94167c0694195f5a8b3c70",
  "url": "https://osv.dev/vulnerability/CVE-2025-27913",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-27913",
    "summary": "Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.",
    "evidence": "osv:CVE-2025-27913",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-27913",
      "aliases": [
        "CVE-2025-27913"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/passbolt/passbolt_api",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "bc9c755ed5ca8cfd03bf5fff1689cc2a8db9a9f3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:passbolt:passbolt_api:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.12.1",
            "v4.12.0",
            "v4.11.1",
            "v4.11.0",
            "v4.10.1",
            "v4.10.0",
            "v4.9.1",
            "v4.9.0",
            "v4.8.0",
            "v4.7.0",
            "v4.6.2",
            "v4.6.1",
            "v4.6.0",
            "v4.5.2",
            "v4.5.0",
            "v4.4.2",
            "v4.4.1",
            "v4.4.0",
            "v4.3.0",
            "v4.2.0",
            "v4.1.2",
            "v4.1.1",
            "v4.1.0",
            "v4.0.2",
            "v4.0.1",
            "v4.0.0",
            "v3.11.1",
            "v3.11.0",
            "v3.10.0",
            "v3.7.3-1",
            "v3.7.3",
            "v3.7.2-1",
            "v3.7.2",
            "v3.7.0",
            "v3.6.0",
            "v3.5.0-1",
            "v3.5.0",
            "v3.4.0-2",
            "v3.4.0-1",
            "v3.4.0",
            "v3.1.0",
            "v2.13.5",
            "v2.13.1",
            "v2.13.0",
            "v2.11.0",
            "v2.9.0",
            "v2.8.4",
            "v2.8.2",
            "v2.8.1",
            "v2.8.0",
            "v2.7.1",
            "v2.7.0",
            "v2.5.0",
            "v2.4",
            "v2.0.0-rc2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27913.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.812550483Z",
      "provider": "osv",
      "references": [
        "https://www.passbolt.com/incidents/host-header-injection",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27913.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-27913"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-348"
        ],
        "cna_assigner": "mitre",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "5"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27913.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-27913",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505357,
  "published_at": "2025-03-10T00:00:00+00:00"
}