WS-2026-0081
Published:September 28, 2026
Updated:September 30, 2026
OpenBao before 2.6.3 / 2.7.0 contains an open redirect in the web UI OIDC provider route (ui/app/routes/vault/cluster/oidc-provider.js): when an unauthenticated visitor requested the authorize route with prompt=none, the UI redirected to the supplied redirect_uri without validating it. An attacker could use a crafted OpenBao link to send users to an arbitrary site (GHSA-2cjw-94fw-wqjx).
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/v2 (GO):
Affected version(s) =v2.7.0-beta20260909 <v2.7.0Fix Suggestion:
Update to version v2.7.0github.com/openbao/openbao (GO):
Affected version(s) >=v0.0.0-20240130165841-85455fb252c6 <v0.0.0-20260923163753-63a65e6b9075Fix Suggestion:
Update to version v0.0.0-20260923163753-63a65e6b9075Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE