7.6
CVE-2026-59208
- EPSS 0.31%
- Veröffentlicht 09.07.2026 15:27:28
- Zuletzt bearbeitet 14.07.2026 01:16:18
- CVE-Watchlists
- Unerledigt
Loginn8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution
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.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.31% | 0.238 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 6.8 | 1.6 | 5.2 |
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
|
| security-advisories@github.com | 7.6 | 0 | 0 |
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
|
CWE-287 Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-346 Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
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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