CVE-2026-15793: Mobyproject Buildkit

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

BuildKit custom frontends or clients using the raw low-level API can set git.checkoutbundle=true when checking out Git sources. If the Git source is malicious, this could lead to a crafted command invocation on the host.

Affected products

• Mobyproject Buildkit: from 0.30.0, before 0.31.2 (fixed in 0.31.2)

Published 2026-07-21. Last modified 2026-07-30.