CVE-2026-5051

HashiCorp Vault and Vault Enterprise prior to 2.0.1 audit device validation logic did not consistently apply plugin directory protections when the legacy file audit path option was used. 

This vulnerability (CVE-2026-5051) is fixed in 2.0.1, 1.21.6, 1.20.11, and 1.19.17.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.4 MEDIUM
NETWORK
HIGH
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
https://discuss.hashicorp.com/t/hcsec-2026-16-vault-audit-device-plugin-directory-guard-bypass-via-legacy-path-option/77536