REDHAT-BUG-2452294: XSS

Published Mar 27, 2026
·
Updated

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao installations that have an OIDC/JWT authentication method enabled and a role with callbackmode=direct configured are vulnerable to XSS via the errordescription parameter on the page for a failed authentication. This allows an attacker access to the token used in the Web UI by a victim. The errordescription parameter has been replaced with a static error message in v2.5.2. The vulnerability can be mitigated by removing any roles with callbackmode set to direct.

Affected Software

1 affected component
OpenBao OpenBao<2.5.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade OpenBao to a version that resolves this vulnerability.

    Fixed in 2.5.2
  2. Configuration

    Mitigate by removing any OpenBao roles configured with `callback_mode=direct` when OIDC/JWT authentication is enabled.

    OpenBao role.callback_mode = remove roles where callback_mode=direct

Event History

Mar 27, 2026
Data Sourced
via Red Hat·03:04 PM
DescriptionSeverityAffected Software
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