CVE-2026-33748

Name
CVE-2026-33748
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, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue affects only builds that use Git URLs with a subpath component. As a workaround, avoid building Dockerfiles from untrusted sources or using the subdir component from an untrusted Git repository where the subdir component could point to a symlink.
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://docs.docker.com/build/concepts/context/#url-fragments
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-4vrq-3vrq-g6gg

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 0.29.0-r0 Hoang Nguyen <folliekazetani@protonmail.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