CVE-2023-25000: Hashicorp Vault

Medium severity, CVSS 4.7. EPSS: 0.2% chance of exploitation in the next 30 days.

HashiCorp Vault's implementation of Shamir's secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space of a brute force effort to recover the Shamir shares. Fixed in Vault 1.13.1, 1.12.5, and 1.11.9.

Affected products

• Hashicorp Vault: before 1.11.9 (fixed in 1.11.9); from 1.12.0, before 1.12.5 (fixed in 1.12.5); from 1.13.0, before 1.13.1 (fixed in 1.13.1)

Published 2023-03-30. Last modified 2026-06-17.