CVE-2026-73137Multicloud-operators-subscription: multicloud-operators-subscription: cross-namespace secret exfiltration via helmrelease.repo.secretref.namespace
- 7.7HighCVSS base score
- 0.53%Exploitation in 30 daysEPSS · top 55% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 9 days later
· 9 days later
Published
- 16 days later
· 16 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.53% · top 55% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Affected products
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.11
- unaffected 1787263584 – < *
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.13
- unaffected 1787263693 – < *
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.14
- unaffected 1787170830 – < *
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.15
- unaffected 1787240030 – < *
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16
- unaffected 1787242321 – < *
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17
- unaffected 1787242108 – < *
What to do
Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
References
References8
- RHSA-2026:60386 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:60387 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:60388 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:60389 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:60390 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:60391 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-73137 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2514223 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-63590 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-73137)Record last updated .