TI-2026-67812 Aliases CVE-2026-93316

BuildKit panics on CDI device builds if started with --cdi-disabled

LOW 31CWE-476Published 2026-10-05 · Updated 2026-10-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

moby BuildKit from 0 before 0.33.1 is affected. A NULL pointer dereference (CWE-476) makes the daemon panic when builds try to use CDI devices after it was started with --cdi-disabled. A low-privileged user on the network can crash the daemon, and this can also happen by accident.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

If BuildKit daemon is started with --cdi-disabled it can lead to daemon panic when builds try to use CDI devices. This can happen maliciously or by accident.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00235 14th percentileScored 2026-11-07

Fix Fixed BuildKit (moby): 0.33.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
moby	BuildKit	before 0.33.1	0.33.1	Patch available	CNA

BuildKit Vendormoby Affected before 0.33.1 Fixed in 0.33.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:mobyproject:buildkit::::::::	—	—	Mobyproject

cpe:2.3:a:mobyproject:buildkit:*:*:*:*:*:*:*:* Versions — — ·Mobyproject

Remediation

Update moby BuildKit to version 0.33.1 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA BuildKit (moby) Fixed in 0.33.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-05
moby BuildKit 0.33.1
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-67814 Cache poisoning in BuildKit via unvalidated image layer DiffIDsPriority LOW 34
- TI-2026-67813 Container blob cache can accept unverified content in BuildKitPriority LOW 26
- TI-2026-68038 Race condition in BuildKit CA cleanup lets build steps disrupt itPriority LOW 25
Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 2 products

Red Hat Hardened Images
Red Hat Quay 3

Timeline

2026-10-05 Threatist record created from CVE-2026-93316
2026-10-05 CISA SSVC decision points changed
2026-10-05 Priority changed: MEDIUM → LOW
2026-10-06 Affected versions changed · Red Hat
2026-10-06 CVSS score added · Red Hat
2026-10-07 Affected versions changed · Red Hat
2026-10-20 Affected versions changed · Red Hat
2026-10-21 Affected versions changed · Red Hat

References

Patch 1

https://github.com/moby/buildkit/releases/tag/v0.33.1

Advisory 1

https://github.com/moby/buildkit/security/advisories/GHSA-r456-g3gm-cvxf

TI-2026-14229 Tar extraction in moby/go-archive can write outside the destination directory via link following CVSS 4.0HIGH 7.1
TI-2021-12512 Moby HyperKit uninitialized memory use in virtio-sock pci_vtsock_proc_tx CVSS 3.1HIGH 7.1
TI-2024-27462 Moby authz zero length regression CVSS 3.1CRITICAL 10.0
TI-2024-15672 BuildKit interactive containers API does not validate entitlements check CVSS 3.1CRITICAL 9.8
TI-2024-15671 BuildKit possible host system access from mount stub cleaner CVSS 3.1CRITICAL 10.0
TI-2026-26365 Moby: AuthZ plugin bypass with oversized request body CVSS 3.1HIGH 8.8

See all 57 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences