vas3k TaxHacker JWT Secret config.ts envSchema.parse hard-coded credentials

{
  "id": "45714e2f74c0ff067cbebbe379b93eb0f2dd49169675112f2b7f3d49c7a28324",
  "url": "https://osv.dev/vulnerability/CVE-2026-78062",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vas3k TaxHacker JWT Secret config.ts envSchema.parse hard-coded credentials",
    "summary": "A vulnerability was identified in vas3k TaxHacker up to 0.8.2. The affected element is the function envSchema.parse of the file lib/config.ts of the component JWT Secret Handler. The manipulation of the argument BETTER_AUTH_SECRET leads to hard-coded credentials. The attack can be initiated remotely. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-78062",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-78062",
      "aliases": [
        "CVE-2026-78062"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "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-2026-78062.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.176612610Z",
      "provider": "osv",
      "references": [
        "https://github.com/vas3k/TaxHacker/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78062.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-78062",
        "https://vuldb.com/cve/CVE-2026-78062",
        "https://vuldb.com/submit/881826",
        "https://vuldb.com/vuln/394302",
        "https://github.com/vas3k/TaxHacker/issues/147",
        "https://vuldb.com/vuln/394302/cti"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-259",
          "CWE-798"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78062.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-78062",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494815,
  "published_at": "2026-08-23T04:15:10.545+00:00"
}