CVE-2026-33758
Medium · 6.1CVSS
6.1
EPSS
0.4%
Published
Mar 27, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Leap 15.6 | govulncheck-vulndb | 0 | 0.0.20260326T203309-150000.1.155.2 |
| openSUSE:Tumbleweed | openbao | 0 | 2.5.2-1.1 |
Related vulnerabilities
- CVE-2026-33990 Docker Model Runner (DMR) is software used to manage, run, and deploy AI models using… Also affects govulncheck-vulndb
- CVE-2026-34204 MinIO is a high-performance object storage system. Also affects govulncheck-vulndb
- CVE-2026-34041 act is a project which allows for local running of github actions. Also affects govulncheck-vulndb
- CVE-2026-34042 act is a project which allows for local running of github actions. Also affects govulncheck-vulndb
- CVE-2026-34040 Moby is an open source container framework. Also affects govulncheck-vulndb
- CVE-2026-33997 Moby is an open source container framework. Also affects govulncheck-vulndb
- CVE-2026-27018 Gotenberg is an API for converting document formats. Also affects govulncheck-vulndb
- CVE-2026-33026 Nginx UI is a web user interface for the Nginx web server. Also affects govulncheck-vulndb