{"id":"GHSA-pmqw-72cg-wx85","revision":"734aeabcd7574401b3a6e25c419f64a2","records":[{"revision":"734aeabcd7574401b3a6e25c419f64a2","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-pmqw-72cg-wx85","aliases":["CVE-2026-54307"],"title":"n8n: Credential Exfiltration via Permission Bypass","description":"## Impact\nA member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks were only enforced partially leading to cross-user credential access.\n\nThis issue affects instances where workflow sharing is enabled and at least one workflow has been shared with a member-level user as an Editor.\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. 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- Restrict workflow sharing to fully trusted users only.\n- Audit shared workflows for unexpected credential references or recent modifications.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.\n\n---\nn8n has adopted CVSS 4.0 as primary score for all security advisories. CVSS 3.1 vector strings are provided for backwards compatibility.\n\nCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","state":0,"publishedAt":"2026-06-16T23:02:05+00:00","modifiedAt":"2026-07-08T17:45:17.9902802+00:00","affected":[{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.123.55"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.26.0"},{"kind":"fixed","version":"2.26.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0-rc.0"},{"kind":"fixed","version":"2.25.7"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85","https://nvd.nist.gov/vuln/detail/CVE-2026-54307","https://github.com/n8n-io/n8n"],"sourceUrl":"https://github.com/advisories/GHSA-pmqw-72cg-wx85","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-pmqw-72cg-wx85","identifiers":["GHSA-pmqw-72cg-wx85","CVE-2026-54307"]},"retained":false,"historicalAffected":[]}],"coverage":[]}