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CVE-2026-71543— OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters

一分钟漏洞结论

影响对象
openbao openbao
利用判断
尚无明确在野利用证据,仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本;无法立即升级时,限制受影响服务暴露并加强监测。

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, p

CVSS 7.5 · High EPSS 0.25% · P17

影响版本矩阵 1

厂商产品 版本范围状态
openbao openbao <2.6.0 affected
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一、 漏洞 CVE-2026-71543 基础信息

漏洞信息

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Vulnerability Title
OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters
来源: CVE Program / CVE List V5
Vulnerability Description
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.
来源: CVE Program / CVE List V5
CVSS Information
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
来源: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
openbao openbao <2.6.0 -

二、漏洞 CVE-2026-71543 的公开POC

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三、漏洞 CVE-2026-71543 的情报信息

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CVE-2026-71543 补丁与修复 (2)

CVE-2026-71543 厂商页面 (1)

CVE-2026-71543 其他参考 (1)

CVE-2026-71543 其他参考 (1)

IV. Related Vulnerabilities

V. Comments for CVE-2026-71543

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