CVE-2026-75569 Mce-operator-bundle: all github actions pinned by mutable tag, not commit sha
Attackers with repository write access can inject malicious code into the build process by exploiting unpinned GitHub Actions tags, compromising the distributed software.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75569?
CVE-2026-75569 is a high-severity vulnerability in Red Hat multicluster engine for Kubernetes 2.10, published on 19 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-1357
Which versions are affected by CVE-2026-75569?
How do I fix CVE-2026-75569?
No fix has been published for CVE-2026-75569 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-75569 being exploited?
There is no known exploitation of CVE-2026-75569 in the wild and no public exploit code.
Sources
Also known as GHSA-77qj-pc4h-hxwh.