CVE-2026-39946 OpenBao allows SQL Injection in PostgreSQL database secrets engine
Attackers can inject SQL via schema names in the PostgreSQL secrets engine, potentially executing code or modifying data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-39946?
CVE-2026-39946 is a medium-severity SQL injection vulnerability in openbao, published on 21 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, when OpenBao revoked privileges on a role in the PostgreSQL database secrets engine, OpenBao failed to use proper database quoting on schema names provided by PostgreSQL. This could lead to role revocation failures, or more rarely, SQL injection as the management user. This vulnerability was original from HashiCorp Vault. The vulnerability is addressed in v2.5.3. As a workaround, audit table schemas and ensure database users cannot create new schemas and grant privileges on them.
Weakness: CWE-89
Which versions are affected by CVE-2026-39946?
4 open source packages ship an affected version, including github.com/openbao/openbao and openbao. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/openbao/openbao Go | All versions | 0.0.0-20260420155735-b596b0882620 |
github.com/openbao/openbao Go | All versions | 0.0.0-20260420155735-b596b0882620 |
github.com/openbao/openbao Go | All versions | 0.0.0-20260420155735-b596b0882620 |
openbao Bitnami | All versions | 2.5.3 |
Products include Openbao Openbao.
How do I fix CVE-2026-39946?
Upgrade github.com/openbao/openbao to 0.0.0-20260420155735-b596b0882620 or later.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-39946 being exploited?
There is no known exploitation of CVE-2026-39946 in the wild and no public exploit code.
Other vulnerabilities in openbao
- CVE-2026-33757 OpenBao lacks user confirmation for OIDC direct callback mode
- CVE-2026-33758 OpenBao has Reflected XSS in its OIDC authentication error message
- CVE-2025-54997 OpenBao: Privileged Operator May Execute Code on the Underlying Host
- CVE-2025-64761 OpenBao Privileged Operator Identity Group Root Escalation
- CVE-2025-59043 OpenBao vulnerable to denial of service via malicious JSON request processing
Sources
Also known as BIT-openbao-2026-39946, GHSA-6vgr-cp5c-ffx3, GO-2026-5192.