CVE-2026-93319 A malicious frontend can cause a daemon panic
A malicious BuildKit frontend can trigger a data race causing the daemon to panic, resulting in denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-93319?
CVE-2026-93319 is a medium-severity vulnerability in moby BuildKit, published on 5 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A malicious external BuildKit frontend can send requests using the internal API that can create conditions for a data race that can cause the BuildKit daemon to panic.
Weakness: CWE-567
Which versions are affected by CVE-2026-93319?
How do I fix CVE-2026-93319?
No fix has been published for CVE-2026-93319 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-93319 being exploited?
There is no known exploitation of CVE-2026-93319 in the wild and no public exploit code.
Sources
Also known as AZL-106809, GHSA-4hgw-qrhw-fhg8, UBUNTU-CVE-2026-93319.