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CVE-2026-105949— Cruise-control: streams for apache kafka cruise control: authentication bypass via extra path segment allows unauthenticated access to all admin endpoints

Quick assessment

Affected
CVE-2026-105949
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cruise Control 的 Jetty ConstraintSecurityHandler 在注册安全约束时，仅针对精确的路径规范进行配置，既未设置通配符约束以覆盖所有路径，也未调用 。同时，该 Servlet 使用 来路由请求，该方法会移除路径中的所有前导段和尾部斜杠。因此，诸如 之类的请求能够完全绕过身份验证，但仍会被分发到管理端点。这导致全部 15 个管理端点均可在未进行身份验证的情况下被访问。在 AMQ Streams 环境中，Strimzi 操作员的 NetworkPolicy 将 Cruise C

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

I. Basic Information for CVE-2026-105949

Vulnerability Information
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Vulnerability Title
Cruise-control: streams for apache kafka cruise control: authentication bypass via extra path segment allows unauthenticated access to all admin endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
Cruise Control's Jetty ConstraintSecurityHandler registers security constraints on exact path specs without a catch-all wildcard constraint and without calling setDenyUncoveredHttpMethods(true). The servlet routes requests using Path.of(pathInfo).getFileName(), which strips all leading segments and trailing slashes. Requests like POST /kafkacruisecontrol/x/rebalance bypass authentication entirely but still dispatch to admin endpoints. All 15 admin endpoints become reachable without authentication. In AMQ Streams, the Strimzi operator's NetworkPolicy restricts Cruise Control port 9090 to operator pods only, reducing effective severity to Important.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 2.0.82 ~ 3.1.0 -
Red Hat streams for Apache Kafka 2 - cpe:/a:redhat:amq_streams:2
Red Hat streams for Apache Kafka 3 - cpe:/a:redhat:amq_streams:3

II. Public POCs for CVE-2026-105949

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-105949

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Vendor Advisories for CVE-2026-105949 (2)

IV. Related Vulnerabilities

Same weakness: CWE-287

V. Comments for CVE-2026-105949

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