CVE catalog
CVE-2026-59208
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 identit
- Severity
- High · CVSS 7.6
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.27% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | n8n | Not reported | 2.27.4 | fixed |
| Cpe | n8n | Not reported | Not reported | unknown |
| Npm | n8n | Not reported | 2.28.1 | fixed |
| Npm | n8n | Not reported | 2.27.4 | fixed |
| Cpe | n8n | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | n8n | cpe | Not reported | 2.27.4 | Not reported | Not reported | Not reported |
| Npm | n8n | npm | Not reported | 2.28.1 | Not reported | Not reported | Not reported |
| Npm | n8n | npm | Not reported | 2.27.4 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/advisories/GHSA-mq3m-f8x3-579w]
- [https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4]
- [https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1]
- [https://github.com/n8n-io/n8n/security/advisories/GHSA-mq3m-f8x3-579w]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59208]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2067.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)]