CVE-2026-93317: medium-severity vulnerability in moby BuildKit
Container blob cache can accept unverified content
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
An unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest. The resulting snapshot could be cached under that digest and reused by a later victim build, compromising build-input integrity.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:L/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%