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TI-2026-30508 Aliases CVE-2026-42186GHSA-vv66-6rp4-wr4f

OpenBao's Namespace Deletion May Not Delete Data Properly

Priority LOW 12CWE-212Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00248 16th percentileScored 2026-11-07
Fix Fixed openbao (openbao): 2.5.3github.com/openbao/openbao (Go): 0.0.0-20260420173541-6d2e0506e2b4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openbaoopenbaobefore 2.5.32.5.3Patch availableCNA
—github.com/openbao/openbao (Go)before 0.0.0-20260420173541-6d2e0506e2b40.0.0-20260420173541-6d2e0506e2b4Patch availableGHSA-vv66-6rp4-wr4f
  • openbao Vendoropenbao Affected before 2.5.3 Fixed in 2.5.3 Patch available CNA
  • github.com/openbao/openbao (Go) Vendor— Affected before 0.0.0-20260420173541-6d2e0506e2b4 Fixed in 0.0.0-20260420173541-6d2e0506e2b4 Patch available GHSA-vv66-6rp4-wr4f

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*before 2.5.3Vulnerableopenbao
  • cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:* Versions before 2.5.3 Vulnerable ·openbao

Remediation

  • Fix · CNA openbao (openbao) Fixed in 2.5.3
  • Fix · GHSA-vv66-6rp4-wr4f github.com/openbao/openbao (Go) Fixed in 0.0.0-20260420173541-6d2e0506e2b4 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42186
  2. 2026-10-03 Alias added: GHSA-vv66-6rp4-wr4f

References

Patch 1

Advisory 2

Other 2

  • TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
  • TI-2026-28381 OpenBao has Decompression Bomb via Unbounded Copy in OCI Plugin Extraction (DoS) CVSS 3.1MEDIUM 6.5
  • TI-2026-26136 OpenBao lacks user confirmation for OIDC direct callback mode CVSS 3.1CRITICAL 9.6
  • TI-2026-26137 OpenBao has Reflected XSS in its OIDC authentication error message CVSS 4.0CRITICAL 9.4
  • TI-2025-34701 OpenBao: Privileged Operator May Execute Code on the Underlying Host CVSS 3.1CRITICAL 9.1
  • TI-2025-36685 OpenBao vulnerable to denial of service via malicious JSON request processing CVSS 3.1HIGH 7.5
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences