CVE-2026-71543

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Source
https://cve.org/CVERecord?id=CVE-2026-71543
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71543.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71543
Aliases
Downstream
MINI (2)
Published
2026-09-21T15:03:59Z
Modified
2026-10-28T02:30:57Z
Severity
  • 7.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71543.json"
}
References

Affected packages

Git / github.com/openbao/openbao

Affected ranges

Type
GIT
Repo
https://github.com/openbao/openbao
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
03e3a243b6f07d17c60ce0a182adee7cf4c424eb
Fixed
2d4ebafec5c524408b3d4ac1198df909cb7ac8c1
Fixed
e516ce508e1481504cadbfbf62052364339093bc
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.6.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "2d4ebafec5c524408b3d4ac1198df909cb7ac8c1"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "e516ce508e1481504cadbfbf62052364339093bc"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v2.6.0",
            "range": [
                {
                    "fixed": "03e3a243b6f07d17c60ce0a182adee7cf4c424eb"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

api/auth/approle/v0.*
api/auth/approle/v0.1.0
api/auth/approle/v0.1.1
api/auth/approle/v0.2.0
api/auth/approle/v0.3.0
api/auth/approle/v0.4.0
api/auth/approle/v0.4.1
api/auth/approle/v1.*
api/auth/approle/v1.1.0-development20240408
api/auth/approle/v2.*
api/auth/approle/v2.0.1
api/auth/approle/v2.2.0
api/auth/approle/v2.3.0
api/auth/approle/v2.4.0
api/auth/approle/v2.5.0
api/auth/approle/v2.6.0
api/auth/aws/v0.*
api/auth/aws/v0.1.0
api/auth/aws/v0.2.0
api/auth/aws/v0.3.0
api/auth/aws/v0.4.0
api/auth/aws/v0.4.1
api/auth/aws/v1.*
api/auth/aws/v1.1.0-development20240408
api/auth/azure/v0.*
api/auth/azure/v0.1.0
api/auth/azure/v0.2.0
api/auth/azure/v0.3.0
api/auth/azure/v0.4.0
api/auth/azure/v0.4.1
api/auth/azure/v1.*
api/auth/azure/v1.1.0-development20240408
api/auth/gcp/v0.*
api/auth/gcp/v0.1.0
api/auth/gcp/v0.2.0
api/auth/gcp/v0.3.0
api/auth/gcp/v0.4.0
api/auth/gcp/v0.4.1
api/auth/gcp/v1.*
api/auth/gcp/v1.1.0-development20240408
api/auth/jwt/v2.*
api/auth/jwt/v2.4.0
api/auth/jwt/v2.5.0
api/auth/jwt/v2.6.0
api/auth/kubernetes/v1.*
api/auth/kubernetes/v1.1.0-development20240408
api/auth/kubernetes/v2.*
api/auth/kubernetes/v2.0.1
api/auth/kubernetes/v2.2.0
api/auth/kubernetes/v2.3.0
api/auth/kubernetes/v2.4.0
api/auth/kubernetes/v2.5.0
api/auth/kubernetes/v2.6.0
api/auth/ldap/v1.*
api/auth/ldap/v1.1.0-development20240408
api/auth/ldap/v2.*
api/auth/ldap/v2.0.1
api/auth/ldap/v2.2.0
api/auth/ldap/v2.3.0
api/auth/ldap/v2.4.0
api/auth/ldap/v2.5.0
api/auth/ldap/v2.6.0
api/auth/userpass/v0.*
api/auth/userpass/v0.1.0
api/auth/userpass/v0.2.0
api/auth/userpass/v0.3.0
api/auth/userpass/v0.4.0
api/auth/userpass/v0.4.1
api/auth/userpass/v1.*
api/auth/userpass/v1.1.0-development20240408
api/auth/userpass/v2.*
api/auth/userpass/v2.0.1
api/auth/userpass/v2.2.0
api/auth/userpass/v2.3.0
api/auth/userpass/v2.4.0
api/auth/userpass/v2.5.0
api/auth/userpass/v2.6.0
api/v1.*
api/v1.0.1
api/v1.0.2
api/v1.0.3
api/v1.0.4
api/v1.1.1
api/v1.100.0-development20240408
api/v1.2.0
api/v1.3.1
api/v1.5.0
api/v1.6.0
api/v1.7.0
api/v1.7.1
api/v1.7.2
api/v1.8.0
api/v1.8.1
api/v1.8.2
api/v1.8.3
api/v1.9.0
api/v1.9.1
api/v1.9.2
api/v2.*
api/v2.0.1
api/v2.1.0
api/v2.2.0
api/v2.3.0
api/v2.4.0
api/v2.5.0
api/v2.6.0
Other
before-plugin-removal
dev-namespaces-base-20250215
dev-namespaces-base-20250311
dev-namespaces-base-20250424
sdk/v0.*
sdk/v0.1.10
sdk/v0.1.11
sdk/v0.1.12
sdk/v0.1.13
sdk/v0.1.8
sdk/v0.1.9
sdk/v0.2.1
sdk/v0.3.0
sdk/v0.4.1
sdk/v0.5.0
sdk/v0.5.1
sdk/v0.5.3
sdk/v0.6.0
sdk/v0.6.1
sdk/v0.6.2
sdk/v0.7.0
sdk/v0.8.0
sdk/v0.9.0
sdk/v0.9.1
sdk/v1.*
sdk/v1.100.0-development20240408
sdk/v2.*
sdk/v2.0.1
sdk/v2.1.0
sdk/v2.2.0
sdk/v2.3.0
sdk/v2.4.0
sdk/v2.5.0
sdk/v2.6.0
v2.*
v2.0.0
v2.0.0-alpha20240329
v2.0.0-beta20240618
v2.1.0-beta20241114
v2.1.0-beta20241114.1
v2.1.0-beta20241114.2
v2.1.0-beta20241114.3
v2.2.0-beta20250213
v2.3.0-beta20250528
v2.4.0
v2.5.0-beta20251125
v2.6.0-beta20260622

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71543.json"