CVE-2026-92778 CMAK through 3.0.0.6 Feature Gate Bypass via HTML Form Routes
Attackers can bypass feature gates to disrupt leadership in managed Kafka clusters by accessing unprotected HTML form routes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92778?
CVE-2026-92778 is a medium-severity vulnerability in yahoo CMAK, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
CMAK through 3.0.0.6 fails to apply the scheduled leader election feature toggle to HTML form routes, allowing attackers to bypass the feature gate. Attackers can access the form endpoints to start and stop the recurring election scheduler, disrupting leadership across managed Kafka clusters.
Weakness: CWE-693
Which versions are affected by CVE-2026-92778?
How do I fix CVE-2026-92778?
No fix has been published for CVE-2026-92778 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-92778 being exploited?
There is no known exploitation of CVE-2026-92778 in the wild and no public exploit code.
Sources
Also known as GHSA-8c8p-h27x-rrc9.