{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "8.36"
              },
              {
                "fixed": "9.74"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "9da7adad9572170c9974a1c9e1c3fc44393a85ae"
            },
            {
              "fixed": "ef845fe4a0adb82af436313310939cd48c0b1347"
            },
            {
              "fixed": "ca9bcfa4eeaf6293737f038381f4a3e91569f851"
            }
          ],
          "repo": "https://github.com/wekan/wekan",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-66m2-4wfr-c45p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68558.json"
  },
  "details": "Wekan is open source kanban built with Meteor. From 8.36 until 9.74, the outgoing webhook Integration URL validator in models/integrations.js checked only the literal URL.hostname against regular expressions, so DNS names such as 169-254-169-254.nip.io passed that first-line check. The delivery path's fetchSafe guard already blocked the reported IPv4 destination, but its separate IPv4-only resolver and duplicated blocklist created inconsistent all-address-family enforcement and drift risk between input-time and connection-time validation. Version 9.74 makes server/lib/ssrfGuard.js resolve all addresses with `dns.lookup({ all: true })`, validate every result through the shared isIpBlocked logic, pin the connection, and block redirects. This issue is fixed in version 9.74.",
  "id": "CVE-2026-68558",
  "modified": "2026-08-21T03:30:27.319655448Z",
  "published": "2026-08-19T19:22:18.718Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/wekan/wekan/releases/tag/v9.74"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68558.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wekan/wekan/security/advisories/GHSA-66m2-4wfr-c45p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68558"
    },
    {
      "type": "FIX",
      "url": "https://github.com/wekan/wekan/commit/ef845fe4a0adb82af436313310939cd48c0b1347"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix of CVE-2026-53446)"
}