# CVE-2026-4525

> Vulnerability · severity: **HIGH** (CVSS 7.5).

## 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.

## Key facts

- **CVE ID:** CVE-2026-4525
- **Published:** 2026-04-17
- **CVSS severity:** HIGH
- **CVSS base score:** 7.5
- **CWE codes:** CWE-201

## Affected products

- `hashicorp:vault`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4525

## Citation

> AI Analytics. CVE-2026-4525. Retrieved 2026-07-18 from https://api.ai-analytics.org/cve/CVE-2026-4525. Derived from NIST NVD. Licensed CC0.

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