CVE-2026-33747

Name
CVE-2026-33747
Description
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, when using a custom BuildKit frontend, the frontend can craft an API message that causes files to be written outside of the BuildKit state directory for the execution context. The issue has been fixed in v0.28.1. The vulnerability requires using an untrusted BuildKit frontend set with `#syntax` or `--build-arg BUILDKIT_SYNTAX`. Using these options with a well-known frontend image like `docker/dockerfile` is not affected.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/moby/buildkit/releases/tag/v0.28.1
security-advisories@github.com https://github.com/moby/buildkit/security/advisories/GHSA-4c29-8rgm-jvjj

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mobyproject:buildkit:*:*:*:*:*:*:*:* buildkit >= None < 0.28.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
docker edge-community 29.3.1-r0 Jake Buchholz Göktürk <tomalok@gmail.com> fixed
buildkit edge-community 0.27.0-r3 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.27.0-r2 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.27.0-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.27.0-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.25.1-r2 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.25.1-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.25.1-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.24.0-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.24.0-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.23.2-r3 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.23.2-r2 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.23.2-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.23.2-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.21.1-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.20.1-r2 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.20.1-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.20.1-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.19.0-r2 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.19.0-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.19.0-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.18.2-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.18.2-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.18.1-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.18.0-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit edge-community 0.12.5-r0 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit 3.23-community 0.25.1-r5 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit 3.23-community 0.25.1-r4 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit 3.23-community 0.25.1-r3 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit 3.23-community 0.25.1-r2 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable
buildkit 3.23-community 0.25.1-r1 Hoang Nguyen <folliekazetani@protonmail.com> possibly vulnerable