CVE-2026-4525

—

CVSS 3.1

8.8 high

EPSS

<1%p34

Published

Apr 17, 2026 (Apr 17, 2026)

Modified

Jul 15, 2026

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.

Vendors: hashicorp
Products: vault
Weakness: CWE-201
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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