CVE-2026-42186 PUBLISHED

OpenBao's Namespace Deletion May Not Delete Data Properly

Assigner: GitHub_M
Reserved: 25.04.2026 Published: 14.05.2026 Updated: 14.05.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
CVSS Score: 2.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	Low	Integrity	Low
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	openbao
Product	openbao
Versions	Version < 2.5.3 is affected

References

Problem Types

CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer CWE