CVE-2026-126312
OpenBao before 2.6.5 and 2.7.2 ACL Bypass via Non-Canonical Plugin Paths
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| openbao openbao github.com/openbao/openbao/v2
golang |
≥ 0; < 2.6.5 (affected, semver) 2.6.5 (unaffected, semver) ≥ 2.7.0; < 2.7.2 (affected, semver) 2.7.2 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| openbao openbao github.com/openbao/openbao-plugins/auth/ldap
golang |
≥ 0; < 0.2.0 (affected, semver) 0.2.0 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
| openbao openbao github.com/openbao/openbao-plugins/auth/radius
golang |
≥ 0; < 0.2.0 (affected, semver) 0.2.0 (unaffected, semver) Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.6 high |
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 | CNA: VulnCheck |
| 3.1 / 7.1 high |
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/openbao/openbao/security/advisories/GHSA-736f-82w7-hj22CNA: VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/openbao-before-2.6.5-and-2.7.2-acl-bypass-via-non-canonical-plugin-pathsCNA: VulnCheck · third-party-advisory
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