SB2026081127 - Improper authorization in HashiCorp Vault and Vault Enterprise

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Main Vulnerability Database SB2026081127

SB2026081127 - Improper authorization in HashiCorp Vault and Vault Enterprise

Published: August 11, 2026

Security Bulletin ID SB2026081127
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Authorization (CVE-ID: CVE-2026-12624)

CWE-ID: CWE-285 - Improper Authorization

CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to disclose sensitive information.

The vulnerability exists due to improper access control in the Vault ACL policy engine when handling LIST requests with a trailing slash on a denied path. A remote user can send a crafted LIST request to disclose sensitive information.

The issue is limited to enumeration of entry names beneath a denied path and does not disclose secret values. Exploitation requires a token that has both a broad allow rule on a parent path and a narrower wildcard deny rule on a subpath.


Remediation

Install update from vendor's website.

References