CVE-2026-15792 Possible panic when incorrect parameters sent from frontend
A malicious BuildKit client can crash the daemon by sending crafted requests, causing a denial of service for container build operations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-15792?
CVE-2026-15792 is a medium-severity denial of service vulnerability in moby BuildKit, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A malicious BuildKit client or frontend could craft a request that could lead to BuildKit daemon crashing with a panic.
Weakness: CWE-20
Which versions are affected by CVE-2026-15792?
It affects 1 product.
Products include Mobyproject Buildkit.
How do I fix CVE-2026-15792?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-15792 being exploited?
There is no known exploitation of CVE-2026-15792 in the wild and no public exploit code.
Other vulnerabilities in moby BuildKit
- CVE-2024-23652 BuildKit possible host system access from mount stub cleaner
- CVE-2024-23653 BuildKit interactive containers API does not validate entitlements check
- CVE-2024-23651 BuildKit possible race condition with accessing subpaths from cache mounts
- CVE-2026-33747 BuildKit vulnerable to malicious frontend causing file escape outside of storage root
- CVE-2026-33748 BuildKit Git URL subdir component can cause access to restricted files
Sources
Also known as GHSA-qx3x-mv6r-52p6, UBUNTU-CVE-2026-15792.