CVE-2026-93323
Oversized Dockerfile or .dockerignore can exhaust buildkitd memory
No known exploitation. EPSS puts it in the 1st percentile. Only a workaround so far.
What to do
No fixed build is published yet. The vendor describes a workaround.
- moby BuildKitAffected: ≤ 0.33.0Upgrade to: after 0.33.0Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make buildkitd allocate memory proportional to that file, potentially exhausting memory and terminating the daemon, which interrupts other builds on the same instance. Fixed by rejecting such files above 16 MiB.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.1% chance of exploitation activity in the next 30 days, which ranks it in the 1st percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 1 day, from the signal feeds we watch.
- Workaround availablerecord updated
- Workaround availablepublished, weakness classified, record updated
Affected products
Technical detail
Weaknesses
Sources
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