9.4
Critical
CVE-2026-33758 OpenBao is an open source identity-based secrets management system
Description
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 `callback_mode=direct` configured are vulnerable to XSS via the `error_description` 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 `error_description` parameter has been replaced with a static error message in v2.5.2. The vulnerability can be mitigated by removing any roles with `callback_mode` set to `direct`.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| openbao 2.5 | earliest → < 2.5.2 | 2.5.2 |
| Cryostat 4 | Versions not published |
References
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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The 43 CVEs of openbao →
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