Description
OpenBao before 2.6.3 contains an information disclosure vulnerability that allows attackers to leak sensitive data into audit logs by sending malformed plugin parameters. Attackers can submit requests with malformed TypeKVPair or TypeHeader field values, causing error messages containing sensitive input to be recorded in audit logs.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| openbao | openbao | < 2.6.3, < 2.6.3, 2.7.0 – < 2.7.1 | 2.6.3 |
Advisories 1
- WID-SEC-2026-3540 OpenBao: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 22, 2026
References
- GitHub Security Advisory (GHSA-8xxq-mq9m-xmhw) vendor-advisory
- VulnCheck Advisory: OpenBao before 2.6.3 Sensitive Data Leak in Audit Log via Malformed Parameters third-party-advisory