NULL Pointer Dereference Affecting github.com/moby/buildkit/solver/llbsolver package, versions <0.33.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMMOBYBUILDKITSOLVERLLBSOLVER-20826478
- published11 Oct 2026
- disclosed5 Oct 2026
- credithewei-gikaku
Introduced: 5 Oct 2026
NewCVE-2026-93316 Â (opens in a new tab)How to fix?
Upgrade github.com/moby/buildkit/solver/llbsolver to version 0.33.1 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference due to the ValidateEntitlements function in solver/llbsolver/vertex.go. An attacker can panic the daemon by submitting a build that requests CDI devices when the daemon is started with --cdi-disabled or equivalent CDI-disabled configuration. When CDI support is disabled, the entitlement handling path dereferences a nil CDI manager while processing device requests, crashing the BuildKit daemon and interrupting builds.
Workarounds
- Without
--cdi-disabledin the BuildKit daemon startup flags or TOML config, let CDI device requests go through normal entitlement checks so builds that do not have the CDI entitlement fail cleanly instead of triggering the panic.