{"id":"CVE-2026-77081","aliases":["GHSA-wcv8-x773-j96r"],"url":"https://o3.security/vulnerability/CVE-2026-77081","summary":"n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node","details":"n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are attached, the node enforces the allowed-domains policy of only the first credential while still attaching material from both. An authenticated user with workflow-authoring rights can thereby send a domain-restricted credential to an attacker-controlled endpoint, exfiltrating it with the leaked credential's permissions.","published":"2026-08-20T11:21:13.006Z","modified":"2026-08-23T03:42:20.118201362Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77081.json"},{"type":"ADVISORY","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-wcv8-x773-j96r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77081"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/n8n-before-allowed-domains-bypass-via-graphql-node"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-23T03:42:20.118201362Z"}}