OpenBao's Namespace Deletion May Not Delete Data Properly (CVE-2026-42186)
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.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenBao, an open source identity-based secrets management system, contains a vulnerability identified as CVE-2026-42186. In versions before 2.5.3, when the initial namespace deletion fails, retries do not fully remove all data related to the namespace. This incomplete cleanup can leave outstanding leases active and unrelated storage entries lingering. The vulnerability is fixed in OpenBao version 2.5.3.
Potential Impact
The vulnerability can result in incomplete deletion of namespace data, potentially leaving outstanding leases active and unrelated storage entries present. This may cause data management inconsistencies or residual data exposure within the affected OpenBao deployments. The severity is assessed as low.
Mitigation Recommendations
A fix is available in OpenBao version 2.5.3. Users should upgrade to version 2.5.3 or later to resolve this issue. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-openbao-2026-42186
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-42186"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Low
Patch Information
Threat ID: 6aa005f4acd9273b49ab638b
Added to database: 09/08/2026, 12:56:20 UTC
Last enriched: 09/08/2026, 13:31:03 UTC
Last updated: 10/21/2026, 13:20:21 UTC
Views: 22
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