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CVE-2026-71299— Maestro: maestro: rest api write endpoints registered without authentication middleware

Quick assessment

Affected
Red Hat Multicluster Engine for Kubernetes
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.

在 Maestro 中发现了一个安全漏洞。其 REST API 的写入端点注册时未配置适当的身份验证中间件。这允许远程攻击者执行未经授权的写入操作，例如创建、修改或删除消费者（consumers）和资源包（resource bundles）。此类问题可能导致数据完整性受损，或引发拒绝服务（DoS）攻击。

CVSS 6.5 · Medium

Affected Version Matrix 2

VendorProduct Version RangeStatus
Red Hat Multicluster Engine for Kubernetes any affected
any affected
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I. Basic Information for CVE-2026-71299

Vulnerability Information
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Vulnerability Title
Maestro: maestro: rest api write endpoints registered without authentication middleware
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Maestro. Its REST API write endpoints were registered without proper authentication middleware. This allows a remote attacker to perform unauthorized write operations, such as creating, modifying, or deleting consumers and resource bundles. This could lead to data integrity issues or a denial of service (DoS).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Multicluster Engine for Kubernetes - cpe:/a:redhat:multicluster_engine
Red Hat Multicluster Engine for Kubernetes - cpe:/a:redhat:multicluster_engine

II. Public POCs for CVE-2026-71299

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III. Intelligence Information for CVE-2026-71299

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Other References for CVE-2026-71299 (2)

Same Patch Batch · Red Hat · 2026-10-05 · 12 CVEs total

CVE-2026-101919 8.8 HIGH Hypershift: hypershift: unsanitized kubeconfig passthrough from tenant namespace to contro
CVE-2026-105306 6.5 MEDIUM Keycloak-services: keycloak-services: token introspection audience bypass via dynamic clie
CVE-2026-71298 6.4 MEDIUM Maestro: sql identifier injection via properties.* search filter and orderby field
CVE-2026-105302 5.7 MEDIUM Keycloak-services: keycloak-services: user session note mapper exposes upstream idp access
CVE-2026-104030 5.5 MEDIUM Sssd: sssd: denial of service via out-of-bounds read during passkey parsing
CVE-2026-71297 5.4 MEDIUM Maestro: maestro: grpc broker has no auth interceptor and client mtls is optional
CVE-2026-102295 5.4 MEDIUM Quay: quay: dom-based cross-site scripting via oauth local callback format=json parameter
CVE-2026-102576 4.2 MEDIUM Quay: quay: dom-based cross-site scripting via unvalidated redirect_url on signin page
CVE-2026-105301 4.0 MEDIUM Keycloak-services: keycloak-services: blind ssrf via x.509 authenticator fetching attacker
CVE-2026-104029 3.3 LOW Sssd: sssd: denial of service via out-of-bounds read in autofs responder
CVE-2026-105326 2.5 LOW Cups: cups: argument injection in mailto notifier via notify-recipient-uri

IV. Related Vulnerabilities

Same product: Multicluster Engine for Kubernetes
Same vendor: Red Hat
Same weakness: CWE-306

V. Comments for CVE-2026-71299

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