# Moby BuildKit vulnerabilities Source: https://junglewise.ai/threats/technologies/moby-buildkit Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/moby-buildkit.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 11 vulnerabilities in Moby BuildKit: 0 in the last 7 days and 11 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-121520, was published on 3 November 2026. 2 vulnerabilities in the last four weeks, down 78% on the four before (9). ## Counts - Last 7 days: 0 - Last 30 days: 2 - Last 90 days: 11 - All time: 11 (0 critical, 0 exploited in the wild) ## About Moby BuildKit BuildKit is a Docker image builder that provides enhanced build capabilities and performance improvements over traditional Docker builds. ## Latest Moby BuildKit vulnerabilities - [CVE-2026-121520: Moby BuildKit arbitrary extended attribute setting](https://junglewise.ai/threats/cve-2026-121520-in-buildkit-versions-prior-to-v0-34-1-a-malicious-client-with) (info, published 3 Nov 2026) - [CVE-2026-121522: Moby BuildKit Git source resolver panic](https://junglewise.ai/threats/cve-2026-121522-in-buildkit-versions-v0-26-0-through-v0-34-1-a-specific-build) (info, published 3 Nov 2026) - [CVE-2026-93321: Moby BuildKit malformed LLB merge operation denial of service](https://junglewise.ai/threats/cve-2026-93321-a-malicious-frontend-can-submit-an-llb-definition-that-causes) (info, published 5 Oct 2026) - [CVE-2026-93315: Moby BuildKit proxy CA cleanup disruption](https://junglewise.ai/threats/cve-2026-93315-when-proxy-networking-with-ca-injection-is-enabled-a-build-can) (info, published 5 Oct 2026) - [CVE-2026-93326: Moby BuildKit Git source policy validation bypass](https://junglewise.ai/threats/cve-2026-93326-a-build-step-for-a-git-source-crafted-in-a-specific-way-can) (info, published 5 Oct 2026) - [CVE-2026-93323: Moby buildkit Dockerfile memory exhaustion via oversized files](https://junglewise.ai/threats/cve-2026-93323-the-dockerfile-frontend-loaded-the-dockerfile-and-dockerignore) (info, published 5 Oct 2026) - [CVE-2026-93322: BuildKit daemon panic from malformed LLB merge definition](https://junglewise.ai/threats/cve-2026-93322-a-malicious-frontend-can-submit-an-llb-definition-that-causes) (info, published 5 Oct 2026) - [CVE-2026-93320: Moby BuildKit improper handling of special files in snapshots](https://junglewise.ai/threats/cve-2026-93320-buildkit-may-be-tricked-into-performing-file-actions-with-special) (info, published 5 Oct 2026) - [CVE-2026-93319: Moby BuildKit data race in frontend API handling](https://junglewise.ai/threats/cve-2026-93319-a-malicious-external-buildkit-frontend-can-send-requests-using) (info, published 5 Oct 2026) - [CVE-2026-93318: Moby BuildKit cache poisoning via unvalidated image layer DiffIDs](https://junglewise.ai/threats/cve-2026-93318-a-malicious-image-can-advertise-diffids-from-another-image-while) (info, published 5 Oct 2026) - [CVE-2026-93317: Moby buildkit container blob cache integrity bypass](https://junglewise.ai/threats/cve-2026-93317-an-unauthenticated-attacker-controlling-a-registry-or-oci-layout) (info, published 5 Oct 2026) ## Most severe Moby BuildKit vulnerabilities - [CVE-2026-121520: Moby BuildKit arbitrary extended attribute setting](https://junglewise.ai/threats/cve-2026-121520-in-buildkit-versions-prior-to-v0-34-1-a-malicious-client-with) (info, published 3 Nov 2026) - [CVE-2026-121522: Moby BuildKit Git source resolver panic](https://junglewise.ai/threats/cve-2026-121522-in-buildkit-versions-v0-26-0-through-v0-34-1-a-specific-build) (info, published 3 Nov 2026) - [CVE-2026-93321: Moby BuildKit malformed LLB merge operation denial of service](https://junglewise.ai/threats/cve-2026-93321-a-malicious-frontend-can-submit-an-llb-definition-that-causes) (info, published 5 Oct 2026) - [CVE-2026-93315: Moby BuildKit proxy CA cleanup disruption](https://junglewise.ai/threats/cve-2026-93315-when-proxy-networking-with-ca-injection-is-enabled-a-build-can) (info, published 5 Oct 2026) - [CVE-2026-93326: Moby BuildKit Git source policy validation bypass](https://junglewise.ai/threats/cve-2026-93326-a-build-step-for-a-git-source-crafted-in-a-specific-way-can) (info, published 5 Oct 2026) - [CVE-2026-93323: Moby buildkit Dockerfile memory exhaustion via oversized files](https://junglewise.ai/threats/cve-2026-93323-the-dockerfile-frontend-loaded-the-dockerfile-and-dockerignore) (info, published 5 Oct 2026) - [CVE-2026-93322: BuildKit daemon panic from malformed LLB merge definition](https://junglewise.ai/threats/cve-2026-93322-a-malicious-frontend-can-submit-an-llb-definition-that-causes) (info, published 5 Oct 2026) - [CVE-2026-93320: Moby BuildKit improper handling of special files in snapshots](https://junglewise.ai/threats/cve-2026-93320-buildkit-may-be-tricked-into-performing-file-actions-with-special) (info, published 5 Oct 2026) - [CVE-2026-93319: Moby BuildKit data race in frontend API handling](https://junglewise.ai/threats/cve-2026-93319-a-malicious-external-buildkit-frontend-can-send-requests-using) (info, published 5 Oct 2026) - [CVE-2026-93318: Moby BuildKit cache poisoning via unvalidated image layer DiffIDs](https://junglewise.ai/threats/cve-2026-93318-a-malicious-image-can-advertise-diffids-from-another-image-while) (info, published 5 Oct 2026) ## Vulnerabilities per week 2 vulnerabilities in the last four weeks, down 78% on the four before (9). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 9 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 2 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Moby BuildKit vulnerabilities", https://junglewise.ai/threats/technologies/moby-buildkit, 11 November 2026.