CVE-2026-59208
6.8 MoyenneDescription
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 4.0 | 7.6 Élevée | security-advisories@github.com | 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 |
| 3.1 | 6.8 Moyenne | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
Faiblesses (CWE)
Références
- https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4 Release Notes
- https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1 Release Notes
- https://github.com/n8n-io/n8n/security/advisories/GHSA-mq3m-f8x3-579w Vendor Advisory