{"id":"CVE-2026-54304","title":"n8n: SecurityScorecard Node Leaks API Token to User-Controlled Host","summary":"n8n: SecurityScorecard Node Leaks API Token to User-Controlled Host","severity":"high","cvss":7.7,"cwe":["CWE-200"],"vendor":"n8n","product":"n8n","ecosystem":"npm","affected":["n8n < 1.123.55","n8n >= 2.26.0, < 2.26.1","n8n >= 2.0.0-rc.0, < 2.25.7"],"patched":["n8n 1.123.55","n8n 2.26.1","n8n 2.25.7"],"published":"2026-06-16","updated":"2026-06-16","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-rm2v-h48j-895m","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-rm2v-h48j-895m"},{"url":"https://github.com/advisories/GHSA-rm2v-h48j-895m"}],"tags":["ghsa","npm"],"epss":0.00382,"epssPercentile":0.32047,"ingestedAt":"2026-06-29T14:31:47.468Z","slug":"CVE-2026-54304","body":"## Overview\n\n## Impact\nAn authenticated user with permission to create or modify workflows and access to a SecurityScorecard credential with limited allowed domains could configure the SecurityScorecard node's report download operation to target an attacker-controlled URL. The node attached the SecurityScorecard API token to the outbound request, causing the credential to be sent to the attacker-controlled host bypassing credential configured limitations and exfiltrating.\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Limit workflow creation and editing permissions to fully trusted users only.\n- Disable the SecurityScorecard node by adding `n8n-nodes-base.securityScorecard` to the `NODES_EXCLUDE` environment variable.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.\n\n## Affected packages\n\n- `n8n < 1.123.55`\n- `n8n >= 2.26.0, < 2.26.1`\n- `n8n >= 2.0.0-rc.0, < 2.25.7`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `n8n 1.123.55`\n- `n8n 2.26.1`\n- `n8n 2.25.7`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":42.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}