CVE-2026-71543

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, templated ACL, PKI, and SSH policies could substitute attacker-controlled identity data without rejecting syntax-significant characters. In ACL templated policies, asterisks, plus signs, and slashes could alter path matching. In PKI allowed_uri_sans_template and allowed_domains policies, an asterisk could broaden certificate issuance to unauthorized domains. In SSH allowed_users and allowed_domains policies, a comma could add unauthorized principals. Exploitation requires a deployment to use templated policy data that users can freely modify; templates based on the randomly generated identity.entity.id value are not affected. This could allow privilege escalation, unauthorized access, and unauthorized certificate issuance. This issue is fixed in version 2.6.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#201
https://github.com/openbao/openbao/commit/2d4ebafec5c524408b3d4ac1198df909cb7ac8c1
https://github.com/openbao/openbao/commit/e516ce508e1481504cadbfbf62052364339093bc
https://github.com/openbao/openbao/pull/3401
https://github.com/openbao/openbao/pull/3473
https://github.com/openbao/openbao/releases/tag/v2.6.0
https://github.com/openbao/openbao/security/advisories/GHSA-59w7-v8rr-pr4p

Configurations

No configuration.

History

21 Sep 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-21 15:17

Updated : 2026-09-25 20:17

NVD link : CVE-2026-71543

Mitre link : CVE-2026-71543

CVE.ORG link : CVE-2026-71543

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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