Medium severity · published Oct 5, 2026
CVE-2026-93319
A malicious frontend can cause a daemon panic
5.7
CVSS
0.1%
EPSS
No
On KEV
Description
A malicious external BuildKit frontend can send requests using the internal API that can create conditions for a data race that can cause the BuildKit daemon to panic.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BU
BuildKit · moby
through 0.33.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93319
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-93319
vendor-advisory
https://github.com/moby/buildkit/security/advisories/GHSA-4hgw-qrhw-fhg8
patch
https://github.com/moby/buildkit/releases/tag/v0.33.1
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