CVE-2026-93322: moby buildkit Improper Validation of Array Index
CVSS: 6.9v4.0MediumAwaiting analysis
AliasesUBUNTU-CVE-2026-93322
Published 05-10-2026Last modified 05-10-2026
Vulnerability summary
CVE-2026-93322 is a medium (CVSS 6.9) Improper Validation of Array Index vulnerability in moby buildkit. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 1.9% of scored vulnerabilities.
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)EPSS score
0.13%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 05-10-2026PublishedVulnerability first disclosed.
- 05-10-2026Last modifiedVulnerability information updated.
Description
A malicious frontend can submit an LLB definition that causes buildkitd to panic and terminate, interrupting all builds running on that daemon.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 6.9Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.9MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- NVDNIST6.9MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
06-10-202620-10-2026
EPSS score0.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- docker.ioAll versions (No fix recorded)
- docker.io-appAll versions (No fix recorded)
Moby1 product
- buildkit≤ 0.33.0
2 vendors · 3 products