CVE-2026-5051

Audit Log Plugin Directory Guard Bypass via Legacy path Option

State: Published
Severity: 4.4 Medium
Published: Jul 1, 2026
Updated: Jul 1, 2026
Reserved: Mar 27, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	4.4 Medium	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N	HashiCorp

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory (Path Traversal)

Affected Products

Product	Versions
VaultHashiCorp	1.20.1 to before 2.0.1Affectedfrom 1.20.11Not affectedfrom 1.21.6Not affectedfrom 2.0.1Not affected
Vault EnterpriseHashiCorp	1.19.0 to before 2.0.1Affectedfrom 1.19.17Not affectedfrom 1.20.11Not affectedfrom 1.21.6Not affectedfrom 2.0.1Not affected

References

https://discuss.hashicorp.com/t/hcsec-2026-16-vault-audit-device-plugin-directory-guard-bypass-via-legacy-path-option/77536

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