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CVE-2026-75569— Mce-operator-bundle: all github actions pinned by mutable tag, not commit sha

Quick assessment

Affected
Red Hat multicluster engine for Kubernetes 2.10
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.

Red Hat mce-operator-bundle是美国Red Hat公司的一个云计算场景下的操作符捆绑包。 Red Hat mce-operator-bundle存在软件供应链问题漏洞，该漏洞源于构建过程从远程仓库获取并执行脚本时未进行完整性检查，可能允许具有远程仓库写权限的恶意行为者注入并执行任意代码，导致构建过程被破坏，可能分发恶意软件。

CVSS 7.7 · High EPSS 0.60% · P47

Affected Version Matrix 6

VendorProduct Version RangeStatus
Red Hat multicluster engine for Kubernetes 2.10 1787263075< * unaffected
Red Hat multicluster engine for Kubernetes 2.11 1787321579< * unaffected
Red Hat multicluster engine for Kubernetes 2.17 1787083639< * unaffected
Red Hat multicluster engine for Kubernetes 2.6 1787317415< * unaffected
Red Hat multicluster engine for Kubernetes 2.8 1787318262< * unaffected
Red Hat multicluster engine for Kubernetes 2.9 1787287150< * unaffected
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I. Basic Information for CVE-2026-75569

Vulnerability Information
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Vulnerability Title
Mce-operator-bundle: all github actions pinned by mutable tag, not commit sha
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in mce-operator-bundle. The build process fetches and executes scripts from a remote repository without performing integrity checks, such as commit pinning or signature verification. This allows a malicious actor with write access to the remote repository to inject and execute arbitrary code during the build. The consequence is a compromised build process, potentially leading to the distribution of malicious software.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1357
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat mce-operator-bundle 软件供应链问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat mce-operator-bundle是美国Red Hat公司的一个云计算场景下的操作符捆绑包。 Red Hat mce-operator-bundle存在软件供应链问题漏洞，该漏洞源于构建过程从远程仓库获取并执行脚本时未进行完整性检查，可能允许具有远程仓库写权限的恶意行为者注入并执行任意代码，导致构建过程被破坏，可能分发恶意软件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat multicluster engine for Kubernetes 2.10 1787263075 ~ * cpe:/a:redhat:multicluster_engine:2.10::el9
Red Hat multicluster engine for Kubernetes 2.11 1787321579 ~ * cpe:/a:redhat:multicluster_engine:2.11::el9
Red Hat multicluster engine for Kubernetes 2.17 1787083639 ~ * cpe:/a:redhat:multicluster_engine:2.17::el9
Red Hat multicluster engine for Kubernetes 2.6 1787317415 ~ * cpe:/a:redhat:multicluster_engine:2.6::el9
Red Hat multicluster engine for Kubernetes 2.8 1787318262 ~ * cpe:/a:redhat:multicluster_engine:2.8::el9
Red Hat multicluster engine for Kubernetes 2.9 1787287150 ~ * cpe:/a:redhat:multicluster_engine:2.9::el9

II. Public POCs for CVE-2026-75569

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III. Intelligence Information for CVE-2026-75569

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Vendor Advisories for CVE-2026-75569 (8)

Same Patch Batch · Red Hat · 2026-08-19 · 10 CVEs total

CVE-2026-70496 9.9 CRITICAL Search-v2-operator: search-v2-operator: operator clusterrole is cluster-admin equivalent v
CVE-2026-66794 9.3 CRITICAL Cluster-proxy-addon: cluster-proxy-addon: unauthenticated ssrf to arbitrary managed-cluste
CVE-2026-71470 9.1 CRITICAL Acm-search-v2-rhel9: search-v2-operator: search cr imageoverride/arguments/envvar flow uns
CVE-2026-76139 8.0 HIGH Acm-operator-bundle: acm-operator-bundle: bundle build execs unpinned stolostron/release@m
CVE-2026-76235 7.5 HIGH Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie
CVE-2026-76827 6.8 MEDIUM Search-indexer: search-indexer: update/delete operations not scoped to caller's cluster (c
CVE-2026-18874 6.2 MEDIUM Volsync-addon-controller: volsync-addon-controller: annotation values rendered into yaml v
CVE-2026-75900 6.1 MEDIUM Swtpm: swtpm: out-of-bounds read in swtpm_nvram_checkheader due to sizeof(pointer) vs size
CVE-2026-76166 4.3 MEDIUM Modcluster-core: mod_cluster advertise listener: unauthenticated dos via crafted multicast

IV. Related Vulnerabilities

Same product: multicluster engine for Kubernetes 2.10
Same vendor: Red Hat
Same weakness: CWE-1357

V. Comments for CVE-2026-75569

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