Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-66783— Submariner-operator: submariner-operator: arbitrary image override enables privileged code execution on every node

Quick assessment

Affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
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.

在红帽高级集群管理（Red Hat Advanced Cluster Management）的 Kubernetes 版本中，发现 组件存在一个安全漏洞。该漏洞允许集群管理员或任何拥有修改 Submariner 自定义资源（CR）权限的用户指定一个未经过验证的镜像路径。由于缺乏有效的验证机制，攻击者可以通过部署恶意镜像，在包括控制平面节点在内的整个集群中以提权方式执行任意代码。

CVSS 8.2 · High EPSS 0.13% · P3

Affected Version Matrix 4

VendorProduct Version RangeStatus
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 any affected
any affected
any affected
any affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-66783

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Submariner-operator: submariner-operator: arbitrary image override enables privileged code execution on every node
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the `submariner-operator` component of Red Hat Advanced Cluster Management for Kubernetes. This vulnerability allows a cluster administrator, or any user with permissions to modify the Submariner Custom Resource (CR), to specify an unvalidated image path. This lack of validation enables an attacker to execute arbitrary code with elevated privileges across the entire cluster, including control-plane nodes, by deploying a malicious image.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2

II. Public POCs for CVE-2026-66783

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-66783

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-66783 (2)

Same Patch Batch · Red Hat · 2026-08-18 · 14 CVEs total

CVE-2026-66780 9.9 CRITICAL Submariner-operator: submariner-operator: flat broker trust model grants every spoke full
CVE-2026-12564 9.6 CRITICAL Automation-controller: automation-controller: kubernetes service account token exfiltratio
CVE-2026-18963 9.1 CRITICAL Keycloak-services: keycloak-services: unauthenticated account takeover via reset-credentia
CVE-2026-66793 8.8 HIGH Governance-policy-addon-controller: governance-policy-addon-controller: arbitrary containe
CVE-2026-75924 8.7 HIGH Managed-serviceaccount: managed-serviceaccount: hub addon-manager clusterrole grants clust
CVE-2026-66782 7.8 HIGH Submariner-operator: submariner-operator: broker api bearer token stored cleartext in cr s
CVE-2026-71365 7.7 HIGH Awx: webhook status callback ssrf leaks the git pat
CVE-2026-15571 7.3 HIGH Keycloak-services: keycloak-services: predictable account-linking hash enables account tak
CVE-2026-66781 6.5 MEDIUM Submariner-operator: submariner-operator: ipsec psk stored cleartext in submariner cr spec
CVE-2026-75032 6.3 MEDIUM Bluez: bluez: out-of-bounds read in avrcp parse_media_element and parse_media_folder
CVE-2026-75485 5.5 MEDIUM Must-gather: must-gather: cluster proxy object dumped raw, bypassing inspect redaction of
CVE-2026-73834 5.5 MEDIUM Must-gather: must-gather: embedded secret data in acm wrapper crs collected without redact
CVE-2026-19608 5.3 MEDIUM Keycloak-services: keycloak-services: name-only group claims let same-name groups satisfy

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2
Same vendor: Red Hat
Same weakness: CWE-20

V. Comments for CVE-2026-66783

No comments yet

Leave a comment