{"id":"EUVD-2026-42610","enisaUuid":"218741b6-14f9-35be-8916-cacced7d9319","description":"n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and ignored the iss claim, allowing an attacker with a valid token from one trusted issuer and a sub matching a victim under another issuer to authenticate as that victim. This issue is fixed in versions 2.27.4 and 2.28.1.","datePublished":"Jul 9, 2026, 3:27:28 PM","dateUpdated":"Jul 14, 2026, 12:20:06 AM","baseScore":7.6,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","references":"https://github.com/n8n-io/n8n/security/advisories/GHSA-mq3m-f8x3-579w\nhttps://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4\nhttps://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1\n","aliases":"CVE-2026-59208\nGHSA-mq3m-f8x3-579w\n","assigner":"GitHub_M","epss":0.26,"enisaIdProduct":[{"id":"59e2f7bc-d414-3063-ad48-175034bec970","product":{"name":"n8n","vendor":{"name":"n8n-io"}},"product_version":"2.28.0, \u003c 2.28.1"},{"id":"c63bcfc9-bf18-3fa3-a827-31a287bfcfbe","product":{"name":"n8n","vendor":{"name":"n8n-io"}},"product_version":"\u003c 2.27.4"}],"enisaIdVendor":[{"id":"4669b166-508e-39c7-9792-3557ac13e75c","vendor":{"name":"n8n-io"}}],"enisaIdVulnerability":[{"id":"57569c54-37ff-3e57-8475-20ea75b891f1","vulnerability":{"id":"GHSA-mq3m-f8x3-579w","description":"n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution","datePublished":"Jul 22, 2026, 9:59:15 PM","dateUpdated":"Jul 22, 2026, 9:59:15 PM","baseScore":0.0,"references":"https://github.com/n8n-io/n8n/security/advisories/GHSA-mq3m-f8x3-579w\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-59208\nhttps://github.com/n8n-io/n8n\nhttps://github.com/n8n-io/n8n/releases/tag/n8n@2.27.4\nhttps://github.com/n8n-io/n8n/releases/tag/n8n@2.28.1\n","enisa_id":"EUVD-2026-42610\n","aliases":"CVE-2026-59208\nGHSA-mq3m-f8x3-579w\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:03:08 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"aebebc8b-b224-3801-add4-825020c68446","vulnerability":{"id":"CVE-2026-59208","description":"n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and ignored the iss claim, allowing an attacker with a valid token from one trusted issuer and a sub matching a victim under another issuer to authenticate as that victim. This issue is fixed in versions 2.27.4 and 2.28.1.","datePublished":"Jul 9, 2026, 3:27:28 PM","dateUpdated":"Jul 14, 2026, 12:20:06 AM","status":"PUBLISHED","baseScore":7.6,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","references":"https://github.com/n8n-io/n8n/security/advisories/GHSA-mq3m-f8x3-579w\nhttps://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4\nhttps://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1\n","enisa_id":"EUVD-2026-42610\n","assigner":"GitHub_M","epss":0.26,"dataProcessed":"Nov 3, 2026, 7:17:50 AM","vulnerabilityProduct":[{"id":"244d34b0-3e21-3bd8-8eb0-672b4d392bd3","product":{"name":"n8n","vendor":{"name":"n8n-io"}},"product_version":"\u003c 2.27.4"},{"id":"b34b033d-8766-39cc-84c4-32dcb7da0b87","product":{"name":"n8n","vendor":{"name":"n8n-io"}},"product_version":"2.28.0, \u003c 2.28.1"}],"vulnerabilityVendor":[{"id":"baeb6b0b-b96e-387f-8f90-62309712df4c","vendor":{"name":"n8n-io"}}]}}],"enisaIdAdvisory":[{"id":"174beeef-04a9-325c-a053-f980f0f48280","advisory":{"id":"NCSC-2026-0228","description":"Kwetsbaarheden verholpen in n8n workflow automation platform","datePublished":"Jul 13, 2026, 9:26:06 AM","dateUpdated":"Jul 13, 2026, 9:26:06 AM","baseScore":0.0,"references":"","aliases":"CVE-2026-59253\nCVE-2026-59257\nCVE-2026-59206\nCVE-2026-59207\nCVE-2026-59208\nCVE-2026-59209\n","source":{"id":19,"name":"csaf_ncscnl"},"advisoryProduct":[{"id":"1bed2fa7-2b3f-34e8-83a1-5f762ea948d8","product":{"name":"n8n","vendor":{"name":"n8n-io"}}}]}}]}