Description
OpenBao before 2.6.3 contains a missing authorization check that allows attackers to stop Agent and Proxy services by omitting the X-Vault-Header. When require_request_header is enabled, attackers can send requests via server-side request forgery to /agent/v1/quit or /proxy/v1/quit to shut down these services.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| openbao | openbao | < 2.6.3 | 2.6.3 |
Advisories 1
- WID-SEC-2026-3540 OpenBao: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2026
References
- GitHub Security Advisory (GHSA-8gmq-wv9h-fcwp) vendor-advisory
- VulnCheck Advisory: OpenBao before 2.6.3 Missing Header Check on Agent/Proxy Quit Endpoints third-party-advisory