WS-2026-0083
Published:September 28, 2026
Updated:September 30, 2026
OpenBao before 2.6.3 / 2.7.0-beta: the PKI secrets engine's ACME order finalization only checked the DNS and IP identifiers in the submitted CSR against the order's validated identifiers, so other Subject Alternative Names (such as email, URI or other SAN types) were issued in the certificate without ever being validated. An ACME client could therefore obtain certificates containing identities it does not control. Fixed in 2.6.3 and 2.7.0 (GHSA-x8fg-h69x-p28f).
Affected Packages
https://github.com/openbao/openbao.git (GITHUB):
Affected version(s) >=v2.0.0-alpha20240329 <v2.6.3Fix Suggestion:
Update to version v2.6.3github.com/openbao/openbao (GO):
Affected version(s) >=v0.0.0-20240130165841-85455fb252c6 <v0.0.0-20260923163753-63a65e6b9075Fix Suggestion:
Update to version v0.0.0-20260923163753-63a65e6b9075github.com/openbao/openbao/v2 (GO):
Affected version(s) =v2.7.0-beta20260909 <v2.7.0Fix Suggestion:
Update to version v2.7.0Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE