CVE-2026-42186 | BDVDB-2026-333339 Detail

openbaoopenbao

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.

Impact#

Per CVSS v4.0: confidentiality impact none, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

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

References#

Exploit#

No public exploit known

History#

Version 12026-05-14Record published in the CVE List.

Published

Published: 2026-05-14
Last modified: 2026-05-14

Vendor information

Vendor: openbao
Product: openbao

All openbao vulnerabilities

Score

2.3 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 16.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2.5.3
Fixed
Not stated

Scoring System

CVSS v4.0

2.3 Low

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

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Attack Requirements	Present
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	None
Vulnerable System Integrity	Low
Vulnerable System Availability	None
Subsequent System Confidentiality	None
Subsequent System Integrity	Low
Subsequent System Availability	None

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).