CVE-2026-42186
High
Description
OpenBao is an open source identity-based secrets management system. Prior to 2.5.3, when OpenBao's initial namespace deletion fails, subsequent retries fail to properly remove all data before marking the namespace as deleted. This can affect any outstanding leases as well as potentially leaving unrelated storage entries around. This vulnerability is fixed in 2.5.3.
SeverityHigh
CVSS7.5
Exploit probability—
ProductOpenbao
PublishedMay 14, 2026
First seenMay 14, 2026
Weakness typeCWE-212CWE-212
How to fix
Update
- openbao openbao2.5.3 or later
- github.com/openbao/openbao0.0.0-20260420173541-6d2e0506e2b4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openbao openbao | v < 2.5.3 | 2.5.3 |
| github.com/openbao/openbaoGo | v < 0.0.0-20260420173541-6d2e0506e2b4 | 0.0.0-20260420173541-6d2e0506e2b4 |
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