vas3k TaxHacker Email Sync imap-client.ts buildImapConfig server-side request forgery

{
  "id": "4437151f48896999199673d1829ebb04bcebf4c5ecea5f1eb5e3f20c1c279efc",
  "url": "https://osv.dev/vulnerability/CVE-2026-78061",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vas3k TaxHacker Email Sync imap-client.ts buildImapConfig server-side request forgery",
    "summary": "A vulnerability was determined in vas3k TaxHacker up to 0.8.2. Impacted is the function buildImapConfig of the file lib/email-sync/imap-client.ts of the component Email Sync. Executing a manipulation of the argument host/port can lead to server-side request forgery. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.",
    "evidence": "osv:CVE-2026-78061",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-78061",
      "aliases": [
        "CVE-2026-78061"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vas3k/taxhacker",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a36e2fb45aea8b78ddc4148aee91935450ecd0f5"
                },
                {
                  "last_affected": "7e485c87d532f3ea222dd0f2a0605a51dac92dfb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.8.0"
                      },
                      {
                        "last_affected": "0.8.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.8.1"
                      },
                      {
                        "last_affected": "0.8.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.8.2"
                      },
                      {
                        "last_affected": "0.8.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.8.2"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.8.0",
            "0.8.1",
            "0.8.2",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78061.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.529082865Z",
      "provider": "osv",
      "references": [
        "https://github.com/vas3k/TaxHacker/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78061.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-78061",
        "https://vuldb.com/cve/CVE-2026-78061",
        "https://vuldb.com/submit/881825",
        "https://vuldb.com/vuln/394301",
        "https://github.com/vas3k/TaxHacker/issues/148",
        "https://vuldb.com/vuln/394301/cti",
        "https://github.com/vas3k/TaxHacker/pull/170"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78061.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-78061",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505742,
  "published_at": "2026-08-23T03:45:09.87+00:00"
}