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CVE-2026-42186

OpenBao's Namespace Deletion May Not Delete Data Properly

Published: May 14, 2026Updated: May 18, 2026 Sources: CVE List NVDCWE-212
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.2%
Top 84.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-212

Affected Products

openbaoopenbao
On-prem
Security Products / identity-access-mgmt
openbaooss-projectSecurity Products

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/openbao/openbao/commit/6d2e0506e2b41be0eaa6643bf7b4efc9a2c09445
github.com
https://github.com/openbao/openbao/releases/tag/v2.5.3
github.com
https://github.com/openbao/openbao/security/advisories/GHSA-vv66-6rp4-wr4f
github.com

Timeline

Published
May 14, 2026
Last Updated
May 18, 2026

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