GHSA-72gw-fmmr-c4r4HighCVSS 7.5

HashiCorp Vault May Expose Tokens to Auth Plugins Due to Incorrect Header Sanitization

Published
April 17, 2026
Last Modified
July 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-4525 →

📋 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.

🎯 Affected products1

  • go/github.com/hashicorp/vault:>= 0.11.2, <= 1.21.4

🔗 References (6)