CVE-2026-105816: Hashicorp Vault

High severity, CVSS 8.0. EPSS: 0.3% chance of exploitation in the next 30 days.

Vault and Vault Enterprise did not consistently verify that stored plugin catalog entries reference binaries within the configured plugin directory. When Vault uses Shamir seals and has an external plugin directory configured, a privileged operator able to restore an Integrated Storage (Raft) snapshot may be able to execute arbitrary code on the Vault host. This vulnerability (CVE-2026-105816) 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.