CVE-2026-15793: medium-severity vulnerability in moby BuildKit
Git source checkout from a bundle file could lead to command injection
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.2%
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
moby · BuildKitRelated CVEs — moby BuildKit
In the same product, most dangerous first.
CVE-2026-15788MEDIUMWCOW cache mount source selector resolves NTFS junctions outside of cache rootEPSS 0.4%CVE-2026-15789MEDIUMMalicious client can bypass destination directory validation on local sources uploadEPSS 0.3%CVE-2026-93326MEDIUMCrafted Git build source can bypass certain policy validationEPSS 0.2%CVE-2026-15791LOWLLB file operation can be tricked to remove /tmp directory contentsEPSS 0.2%CVE-2026-15792MEDIUMPossible panic when incorrect parameters sent from frontendEPSS 0.2%CVE-2026-93316HIGHStarting daemon with --cdi-disabled flag can lead to panic on specific buildsEPSS 0.2%