CVE-2026-89322: Hashicorp Vault

High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days.

Vault and Vault Enterprise did not consistently evaluate ACL policies against the canonical form of resource and policy names. This may allow an authenticated user with delegated permissions to bypass an explicit deny restriction and access a protected resource or assign a denied policy, potentially leading to privilege escalation. This vulnerability (CVE-2026-89322) is fixed in Vault Community Edition 2.1.2, and Vault Enterprise 2.1.2, 1.21.12, 1.20.17, and 1.19.23.

Affected products

• Hashicorp Vault: from 0.0.1, before 2.1.2 (fixed in 2.1.2)
• Hashicorp Vault Enterprise: from 0.0.1, before 2.1.2 (fixed in 2.1.2)

Published 2026-10-07. Last modified 2026-10-09.