CVE-2026-63131— OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)
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, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = ["deny"] for a LIST operation. Wh
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一、 漏洞 CVE-2026-63131 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix)
来源: CVE Program / CVE List V5
Vulnerability Description
OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = ["deny"] for a LIST operation. When a parent path permitted LIST and a child path was denied, the trailing-slash lookup could therefore allow listing the denied path. Other operation types are outside the repository advisory's affected scope. 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:L/UI:N/VC:H/VI:N/VA:N/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
二、漏洞 CVE-2026-63131 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-63131 厂商页面 (1)
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🔗 Release v2.6.0 · openbao/openbao · GitHub x_refsource_MISC
CVE-2026-63131 其他参考 (6)
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https://github.com/openbao/openbao/pull/3389 x_refsource_MISC
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https://github.com/openbao/openbao/pull/3474 x_refsource_MISC
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https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203 x_refsource_MISC
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https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr x_refsource_CONFIRM
同批安全公告 · openbao · 2026-09-23 · 共 3 条
| CVE-2026-63132 | 9.2 CRITICAL | OpenBao's Recovery Mode Vulnerable To Token Leakage via Timing Attack |
| CVE-2026-77285 | 2.4 LOW | OpenBao Agent Writes Secrets to Stdout |
IV. Related Vulnerabilities
V. Comments for CVE-2026-63131
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