Threats Tagged 'cve-2026-56357'
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Threats Tagged 'cve-2026-56357'
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n8n: Webhook Forgery on Github Webhook Trigger (CVE-2026-56357)CVE-2026-56357 0 n8n versions prior to 1.123.15 and versions from 2.0.0 up to but not including 2.5.0 contain a vulnerability in the GitHub Webhook Trigger node. This flaw allows an attacker who knows the webhook URL to send unsigned POST requests, triggering workflows with arbitrary data because the node lacks HMAC-SHA256 signature verification. The vulnerability has been fixed in versions 1.123.15 and 2.5.0 and later. Temporary mitigations include restricting workflow editing permissions and limiting network access to known GitHub IP ranges, but these do not fully eliminate the risk. Join the discussion | GCVE Database | 02/26/2026, 15:58:34 UTC Added: 07/18/2026, 19:25:12 UTC |
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