CVE-2026-93315GHSA-2f5p-x9ph-g97x
BuildKit proxy CA cleanup can be disrupted by build steps
moby BuildKit
CVSS
5.8MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.10%Chance of exploitation activity in the next 30 days, higher than 0% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 0.33.1BuildKitCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build.
Text from CVE List
Affected versions 1
- BuildKitaffected: 0.31.0 before 0.33.1CVE List