CVE-2026-126312

OpenBao before 2.6.5 and 2.7.2 ACL Bypass via Non-Canonical Plugin Paths

Published Nov 13, 2026 CVSS 4.0 · 7.6 High EPSS n/a KEV · Not listed

Description

OpenBao before 2.6.5 and 2.7.x before 2.7.2, and the openbao-plugins LDAP and RADIUS auth plugins before 0.2.0, contain an ACL bypass in the AppRole, Cert, LDAP, and RADIUS auth methods caused by implicit path canonicalization. Authenticated attackers can request non-canonical paths for AppRole Role IDs, Cert CRLs, LDAP groups and users, or RADIUS users to evade ACL deny rules.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

openbao

unaffected

Version	Status	Constraints
`0`	affected	< 2.6.5
`2.6.5`	unaffected	—
`2.7.0`	affected	< 2.7.2
`2.7.2`	unaffected	—

openbao

unaffected

Version	Status	Constraints
`0`	affected	< 0.2.0
`0.2.0`	unaffected	—

openbao

unaffected

Version	Status	Constraints
`0`	affected	< 0.2.0
`0.2.0`	unaffected	—

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/openbao/openbao/security/advisories/GHSA-736f-82w7-hj22
https://www.vulncheck.com/advisories/openbao-before-2.6.5-and-2.7.2-acl-bypass-via-non-canonical-plugin-paths

History

Nov 13, 2026 9:45 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		OpenBao before 2.6.5 and 2.7.x before 2.7.2, and the openbao-plugins LDAP and RADIUS auth plugins before 0.2.0, contain an ACL bypass in the AppRole, Cert, LDAP, and RADIUS auth methods caused by implicit path canonicalization. Authenticated attackers can request non-canonical paths for AppRole Role IDs, Cert CRLs, LDAP groups and users, or RADIUS users to evade ACL deny rules.
Title		OpenBao before 2.6.5 and 2.7.2 ACL Bypass via Non-Canonical Plugin Paths
First Time appeared		Openbao Openbao openbao
Weaknesses		CWE-178
CPEs		cpe:2.3:a:openbao:openbao::::::::
Vendors & Products		Openbao Openbao openbao
References		https://github.com/openbao/openbao/security/advisories/GHSA-736f-82w7-hj22 https://www.vulncheck.com/advisories/openbao-before-2.6.5-and-2.7.2-acl-bypass-via-non-canonical-plugin-paths
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L'}` cvssV4_0 `{'score': 7.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}`