CVE-2026-93321: CWE-129: Improper Validation of Array Index in moby BuildKit
Description
A malicious frontend can submit an LLB definition that causes buildkitd to panic and terminate, interrupting all builds running on that daemon.
CVSS v4.0
Score 6.9medium
Affected software
moby
BuildKit
pkg:github/github.com/moby/buildkitRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Docker
- Date Reserved
- 2026-09-17T17:18:08.293Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac422562cdf04f65640c61e
Added to database: 10/05/2026, 22:19:02 UTC
Last updated: 10/05/2026, 22:19:02 UTC
Views: 1
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