CVE-2026-82432— Apache Storm 配置覆盖导致的Blobstore权限绕过
一分钟漏洞结论
影响对象
Apache Software Foundation Apache Storm Nimbus
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。
描述 Nimbus 仅在拓扑提交时，针对调用主体（calling subject）对 进行校验。Rebalance 操作虽然接受配置覆盖参数，并从中剥离了一小部分键值，但并未重新执行该校验。因此，拥有 rebalance 权限的调用者可以通过 blobstore map 条目指定一个其 ACL 未授予访问权限的 blob。Supervisors 会将 map 中指定的键值进行本地化（localise），将该 blob 的内容解压并放入拓扑的工作目录中。 同一安全公告还涵盖了 方法：该方法未执行任何授权检查，也未传递
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一、 漏洞 CVE-2026-82432 基础信息
漏洞信息
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Vulnerability Title
Apache Storm Nimbus: Blobstore Authorization Bypass via Rebalance Configuration Overrides
来源: CVE Program / CVE List V5
Vulnerability Description
Description
Nimbus validated `topology.blobstore.map` against the calling subject at submission time only. The rebalance
operation accepts configuration overrides and stripped a small set of keys from them, but never re-ran that
validation, so a caller authorised to rebalance a topology could introduce a blobstore map entry naming a
blob whose ACL does not grant them access. Supervisors localise whatever key the map names, placing the
blob's contents into the topology's working directory.
The same advisory covers `listBlobs`, which performed no authorization check and passed no subject, unlike
the neighbouring `getBlobMeta` and `beginBlobDownload` operations. It therefore returned every key in the
blobstore to any caller able to reach the Nimbus Thrift port, which provides the key names that make the
above practical. On its own the disclosure is metadata only.
Mitigation
Upgrade to 3.1.0, where rebalance configuration overrides are validated exactly as submission-time
configuration is, against the rebalancing caller, and where `listBlobs` applies the configured
authorization.
Users who cannot upgrade immediately should restrict rebalance rights to trusted principals, keeping in mind
that membership of a topology's `topology.users` or `topology.groups` confers them.
Credit
The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.
来源: CVE Program / CVE List V5
CVSS Information
N/A
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache Storm Nimbus | 3.0.0 ~ 3.1.0 | - |
|
二、漏洞 CVE-2026-82432 的公开POC
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CVE-2026-82432 其他参考 (1)
同批安全公告 · Apache Software Foundation · 2026-09-14 · 共 39 条
| CVE-2026-82434 | 10.0 CRITICAL | Apache Storm 向只读用户及日志泄露ZK凭证 |
| CVE-2026-78330 | Apache Syncope 管理员JWT权限提升漏洞 | |
| CVE-2026-73579 | Apache Syncope 非递归Any搜索绕过Realm限制 | |
| CVE-2026-75015 | Apache Syncope 嵌套密钥泄露明文的审计记录 | |
| CVE-2026-75030 | Apache Syncope 组成员权限检查不完整漏洞 | |
| CVE-2026-77051 | Apache Syncope SQL注入漏洞 | |
| CVE-2026-73668 | Apache Syncope 机密ConnId配置跨域泄露 | |
| CVE-2026-77147 | Apache Syncope Groovy沙箱逃逸漏洞 | |
| CVE-2026-77181 | Apache Syncope 客户端应用更新权限失效 | |
| CVE-2026-77883 | Apache Syncope JEXL导航致信息泄露 | |
| CVE-2026-78318 | Apache Syncope 控制台反射型XSS漏洞 | |
| CVE-2026-73470 | Apache Syncope 非所有者角色授权越权漏洞 | |
| CVE-2026-78336 | Apache Syncope OIDC提供者列表信息泄露漏洞 | |
| CVE-2026-82232 | Apache Syncope 任务搜索SQL注入 | |
| CVE-2026-86460 | Apache Syncope FIQL查询Cypher注入漏洞 | |
| CVE-2026-87779 | Apache Syncope AES密钥泄露 | |
| CVE-2026-87785 | Apache Syncope JWT主体欺骗漏洞 | |
| CVE-2026-87802 | Apache Syncope 远程代码执行漏洞 | |
| CVE-2026-68570 | Apache Doris 授权绕过导致未授权数据访问漏洞 | |
| CVE-2026-72524 | Apache Doris 授权绕过导致任意表读写删 |
显示前 20 条，共 39 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-82432
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