CVE-2026-45808
Published:August 07, 2026
Updated:September 01, 2026
OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented "sys/revoke" and "sys/renew" endpoints. This is fixed in OpenBao v2.5.4.
Affected Packages
github.com/openbao/openbao (GO):
Affected version(s) >=api/auth/approle/v0.1.0 <v2.5.4Fix Suggestion:
Update to version v2.5.4github.com/openbao/openbao (GO):
Affected version(s) >=v0.0.0-20180215141156-b24cf9a8af21 <v2.5.4Fix Suggestion:
Update to version v2.5.4Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.31