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    CVE-2026-42186

    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.

    Published:May 14, 2026
    Last Modified:May 18, 2026
    EPS:May 14, 2026
    EPSS Score:0.0004
    CVSS Score:7.5

    Affected Products

    Vendor
    Openbao
    Product
    Openbao

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-168 Windows ::DATA Alternate Data Stream

    Related CVEs

    CVE-2026-45808 (CVSS 7.1) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's namespac…
    CVE-2026-46405 (CVSS 5.3) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, in OpenBao's Kerbe…
    CVE-2026-46358 (CVSS 5.4) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's inline a…
    CVE-2026-40264 (CVSS 2) — OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant …
    CVE-2026-39396 (CVSS 3.1) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, `ExtractPluginFrom…
    CVE-2026-39388 (CVSS 2) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, OpenBao's Certific…
    CVE-2026-39946 (CVSS 4.6) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.3, when OpenBao revok…
    CVE-2026-33758 (CVSS 9.4) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao installati…
    CVE-2026-33757 (CVSS 9.6) — OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao does not p…
    CVE-2025-64761 (CVSS 7.5) — OpenBao is an open source identity-based secrets management system. Prior to version 2.4.4, a privileged opera…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High