CVE-2026-75569
Mce-operator-bundle: all github actions pinned by mutable tag, not commit sha
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.60% · top 51% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Weakness
Affected products
Red Hat · multicluster engine for Kubernetes 2.10
- unaffected 1787263075 – < *
Red Hat · multicluster engine for Kubernetes 2.11
- unaffected 1787321579 – < *
Red Hat · multicluster engine for Kubernetes 2.17
- unaffected 1787083639 – < *
Red Hat · multicluster engine for Kubernetes 2.6
- unaffected 1787317415 – < *
Red Hat · multicluster engine for Kubernetes 2.8
- unaffected 1787318262 – < *
Red Hat · multicluster engine for Kubernetes 2.9
- unaffected 1787287150 – < *
What to do
Workaround: The vulnerability resides within the build process of `mce-operator-bundle`, specifically concerning the fetching of build logic from a mutable source without integrity verification. As this issue pertains to the build-time integrity of the software, there are no direct runtime configuration or operational controls available for users to mitigate this vulnerability in deployed Red Hat products.
References (8)
- RHSA-2026:59634 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:59636 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:59637 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:59638 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:59642 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:59643 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-75569 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2519849 (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)
- 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://trackcve.app/cve/CVE-2026-75569)Record last updated .