What is CVE-2026-15793?

CVE-2026-15793 is a high-severity vulnerability in Moby Buildkit, classified under Argument Injection. CVSS score: 7.5/10. Published 2026-07-21.

How severe is CVE-2026-15793?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Moby Buildkit

CVE-2026-15793

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.

EPSS: 0.002 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Moby Buildkit — versions 0.30.0
Mobyproject Buildkit

Weakness classification (CWE)

CWE-88 — Argument Injection

References

security@docker.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-15793?: CVE-2026-15793 is a high-severity vulnerability in Moby Buildkit, classified under Argument Injection. CVSS score: 7.5/10. Published 2026-07-21.
How severe is CVE-2026-15793?: High severity. CVSS v3 base score is 7.5 out of 10.