CVE-2026-42186— OpenBao's Namespace Deletion May Not Delete Data Properly
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I. Basic Information for CVE-2026-42186
Vulnerability Information
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Vulnerability Title
OpenBao's Namespace Deletion May Not Delete Data Properly
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
敏感数据的不恰当跨边界移除
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenBao 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenBao是OpenBao开源的一个敏感数据管理软件。 OpenBao 2.5.3之前版本存在安全漏洞，该漏洞源于初始命名空间删除失败时，后续重试未能正确删除所有数据，可能导致影响未完成租约以及留下无关存储条目。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-42186
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- https://github.com/openbao/openbao/releases/tag/v2.5.3x_refsource_MISC
- https://github.com/openbao/openbao/security/advisories/GHSA-vv66-6rp4-wr4fx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-42186
IV. Related Vulnerabilities
Same product: openbao
- CVE-2026-40264
OpenBao's Token Store Allows Cross-Namespace Renewal, Revoca - CVE-2026-39396
OpenBao has Decompression Bomb via Unbounded Copy in OCI Plu - CVE-2026-39388
OpenBao's Certificate Authentication Allows Token Renewal Wi - CVE-2026-39946
OpenBao allows SQL Injection in PostgreSQL database secrets - CVE-2026-33758
OpenBao has Reflected XSS in its OIDC authentication error m
Same vendor: openbao
- CVE-2026-40264
OpenBao's Token Store Allows Cross-Namespace Renewal, Revoca - CVE-2026-39396
OpenBao has Decompression Bomb via Unbounded Copy in OCI Plu - CVE-2026-39388
OpenBao's Certificate Authentication Allows Token Renewal Wi - CVE-2026-39946
OpenBao allows SQL Injection in PostgreSQL database secrets - CVE-2026-33758
OpenBao has Reflected XSS in its OIDC authentication error m
Same weakness: CWE-212
- CVE-2024-43384
Phoenix Contact: Improper removal of sensitive information i - CVE-2026-43528
OpenClaw < 2026.4.14 - Redaction Bypass via sourceConfig and - CVE-2026-43824
Argo CD 安全漏洞 - CVE-2026-20928
Windows Recovery Environment Security Feature Bypass Vulnera - CVE-2026-39937
Global vanishing does not completely remove user email
V. Comments for CVE-2026-42186
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