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CVE-2026-73137— Multicloud-operators-subscription: multicloud-operators-subscription: cross-namespace secret exfiltration via helmrelease.repo.secretref.namespace

Quick assessment

Affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11
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.

Open Cluster Management multicloud-operators-subscription是Open Cluster Management组织的一款支持多云环境订阅管理的企业云平台组件。 Open Cluster Management multicloud-operators-subscription存在信息泄露漏洞，该漏洞源于multicloud-operators-subscription组件中的secretRef.Namespace字段操纵问题，可能导致具有HelmRelea

CVSS 7.7 · High EPSS 0.53% · P43
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I. Basic Information for CVE-2026-73137

Vulnerability Information
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Vulnerability Title
Multicloud-operators-subscription: multicloud-operators-subscription: cross-namespace secret exfiltration via helmrelease.repo.secretref.namespace
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM). A tenant with HelmRelease create permissions can exploit this vulnerability by manipulating the `secretRef.Namespace` field. This allows the `GetSecret()` function in the HelmRelease controller to fetch sensitive credentials from any namespace, which are then sent to an attacker-controlled Helm repository. This can lead to the exfiltration of credentials from arbitrary namespace Secrets, resulting in information disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Open Cluster Management multicloud-operators-subscription 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open Cluster Management multicloud-operators-subscription是Open Cluster Management组织的一款支持多云环境订阅管理的企业云平台组件。 Open Cluster Management multicloud-operators-subscription存在信息泄露漏洞，该漏洞源于multicloud-operators-subscription组件中的secretRef.Namespace字段操纵问题，可能导致具有HelmRelea
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 Red Hat Advanced Cluster Management for Kubernetes 2.11 1787263584 ~ * cpe:/a:redhat:acm:2.11::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1787263693 ~ * cpe:/a:redhat:acm:2.13::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1787170830 ~ * cpe:/a:redhat:acm:2.14::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1787240030 ~ * cpe:/a:redhat:acm:2.15::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1787242321 ~ * cpe:/a:redhat:acm:2.16::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1787242108 ~ * cpe:/a:redhat:acm:2.17::el9

II. Public POCs for CVE-2026-73137

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III. Intelligence Information for CVE-2026-73137

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Vendor Advisories for CVE-2026-73137 (8)

Same Patch Batch · Red Hat · 2026-08-20 · 15 CVEs total

CVE-2026-67567 9.9 CRITICAL Multicloud-operators-subscription: multicloud-operators-subscription: helmrelease chart ap
CVE-2026-11861 9.6 CRITICAL Freeipa: idm: ipa: freeipa: obtaining tgs with impersonating cname through trust relations
CVE-2026-13097 8.7 HIGH Ipa: privilege escalation via krbcanonicalname manipulation due to realm-unaware uniquenes
CVE-2026-77176 8.1 HIGH Kata-containers: insufficient validation of createcontainer mount and storage rules in gen
CVE-2026-18917 7.8 HIGH Libvirt: integer overflow in nodegetfreepages rpc handler leading to heap buffer overflow
CVE-2026-73197 7.5 HIGH Ipa: freeipa: unauthenticated dos in `/ipa/migration/migration.py` via unbounded request b
CVE-2026-73198 7.5 HIGH Ipa: freeipa: unauthenticated dos in `/ipa/i18n_messages` via unbounded request body read
CVE-2026-19611 7.4 HIGH Wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: pass
CVE-2026-73199 6.5 MEDIUM Ipa: freeipa: null pointer dereference in `ipa-enrollment` extended operation (`join_oid`)
CVE-2026-66787 5.4 MEDIUM Lighthouse: go pprof profiling endpoint enabled unconditionally on lighthouse-agent :8082
CVE-2026-77014 5.3 MEDIUM Libsoup: libsoup: integer truncation in sort_ranges() comparator causes silent omission of
CVE-2026-73196 4.3 MEDIUM Ipa: freeipa: authenticated dos in `otptoken-add` via unbounded otp key decoding/re-encodi
CVE-2026-66788 3.7 LOW Lighthouse: dockerfile build stages use end-of-life fedora 40 referenced by mutable tag
CVE-2026-66785 2.5 LOW Submariner: ipsec psk secrets file created with default world-readable permissions

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2.11
Same vendor: Red Hat
Same weakness: CWE-200

V. Comments for CVE-2026-73137

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