What’s Vulnerable › Vulnerabilities

CVE-2023-2197: Vault Enterprise Vulnerable to Padding Oracle Attacks When Using a CBC-based Encryption Mechanism with a HSM

• Severity: low (CVSS 2.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-01 · updated 2026-06-17
• Weakness: CWE-326

Description

HashiCorp Vault Enterprise 1.13.0 up to 1.13.1 is vulnerable to a padding oracle attack when using an HSM in conjunction with the CKM_AES_CBC_PAD or CKM_AES_CBC encryption mechanisms. An attacker with privileges to modify storage and restart Vault may be able to intercept or modify cipher text in order to derive Vault’s root key. Fixed in 1.13.2

Affected products

• HashiCorp Vault: from 1.13.0 before 1.13.2 — fixed in 1.13.2

How to fix

Upgrade to a fixed version: HashiCorp Vault 1.13.2. Check the vendor advisory for mitigations.

References

• https://discuss.hashicorp.com/t/hcsec-2023-14-vault-enterprise-vulnerable-to-padding-oracle-attacks-when-using-a-cbc-based-encryption-mechanism-with-a-hsm/53322
• https://security.netapp.com/advisory/ntap-20230609-0007/
• https://discuss.hashicorp.com/t/hcsec-2023-14-vault-enterprise-vulnerable-to-padding-oracle-attacks-when-using-a-cbc-based-encryption-mechanism-with-a-hsm/53322
• https://security.netapp.com/advisory/ntap-20230609-0007/

Get alerted when CVE-2023-2197 or the next vulnerability affects your stack