CVE-2026-4525
Last modified
CVE-2026-4525 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. If a Vault auth mount is configured to pass through the "Authorization" header, and the "Authorization" header is used to authenticate to Vault, Vault forwarded the Vault token to the auth plugin backend. Fixed in 2.0.0, 1.21.5, 1.20.10, and 1.19.16.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
If a Vault auth mount is configured to pass through the "Authorization" header, and the "Authorization" header is used to authenticate to Vault, Vault forwarded the Vault token to the auth plugin backend. Fixed in 2.0.0, 1.21.5, 1.20.10, and 1.19.16.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hashicorp | Vault | >= 0.11.2, < 1.19.16 |
| Hashicorp | Vault | >= 0.11.2, < 2.0.0 |
| Hashicorp | Vault | >= 1.20.0, < 1.20.10 |
| Hashicorp | Vault | >= 1.21.0, < 1.21.5 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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