GHSA-4c29-8rgm-jvjj

BuildKit's Malicious frontend can cause file escape outside of storage root

High highest severity reported · also known as CVE-2026-33747

1
catalog tools match this advisory
1
ship the vulnerable code in their release binary (Go tools analyzed with govulncheck)
No
in the CISA KEV catalog
0.5%
EPSS for CVE-2026-33747, percentile 43

Catalog tools matching GHSA-4c29-8rgm-jvjj

ToolVersion scannedPackageFixed inReleased binaryDeclared in or found inDispute
vet
Software Composition Analysis (SCA)
v1.20.0github.com/moby/buildkit@v0.26.3
golang
0.28.1vulnerable code in binarygo.modDispute

Vulnerabilities are known advisories that Grype matches against the dependencies declared in each project's release source (manifests and lockfiles, including development and build dependencies). A match does not mean the tool is exploitable: the vulnerable code may be unused, test-only, or not shipped in the released binary. KEV: listed in the CISA Known Exploited Vulnerabilities catalog. EPSS: FIRST's estimated probability of exploitation in the next 30 days. Both describe the vulnerability in general, not its exploitability through this tool; a match in a workflow file refers to a GitHub Action, not to shipped code. Released binary is only analyzed for Go tools with a Linux release binary; other tools show not analyzed.

Advisory sources

GitHub advisory GHSA-4c29-8rgm-jvjj · NVD CVE-2026-33747 · OSV GHSA-4c29-8rgm-jvjj

Grype data sources: https://github.com/advisories/GHSA-4c29-8rgm-jvjj