{"id":"CVE-2026-68558","summary":"Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix of CVE-2026-53446)","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.","aliases":["GHSA-66m2-4wfr-c45p"],"modified":"2026-08-21T03:46:53.001219863Z","published":"2026-08-19T19:22:18.718Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68558.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-918"]},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wekan/wekan","events":[{"introduced":"9da7adad9572170c9974a1c9e1c3fc44393a85ae"},{"fixed":"ef845fe4a0adb82af436313310939cd48c0b1347"},{"fixed":"ca9bcfa4eeaf6293737f038381f4a3e91569f851"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"8.36"},{"fixed":"9.74"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68558.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N"}]}