CVE-2026-33748
CVE-2026-33748 · BuildKit Git URL subdir component can cause access to restricted files
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.2 · High · EPSS 0.5% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
buildkit
- Versions
- < 0.28.1: Affected
No fix published
docker.io Debian:12
- Versions
- 20.10.24+dfsg1-1
- 20.10.24+dfsg1-1+deb12u1
- 20.10.25+dfsg1-1
- 20.10.25+dfsg1-2
- 20.10.25+dfsg1-3
- 20.10.25+dfsg1-4
- 26.1.4+dfsg1-1
- 26.1.4+dfsg1-2
- 26.1.4+dfsg1-3
- 26.1.4+dfsg1-4
- 26.1.4+dfsg1-5
- 26.1.4+dfsg1-6
- 26.1.4+dfsg1-7
- 26.1.4+dfsg1-8
- 26.1.4+dfsg1-9
- 26.1.4+dfsg2-1
- 26.1.4+dfsg3-1
- 26.1.5+dfsg1-1
- 26.1.5+dfsg1-10
- 26.1.5+dfsg1-2
- 26.1.5+dfsg1-3
- 26.1.5+dfsg1-4
- 26.1.5+dfsg1-5
- 26.1.5+dfsg1-6
- 26.1.5+dfsg1-7
- 26.1.5+dfsg1-8
- 26.1.5+dfsg1-9
- 27.5.1+dfsg1-1
- 27.5.1+dfsg1-2
- 27.5.1+dfsg2-1
- 27.5.1+dfsg3-1
- 27.5.1+dfsg3-2
- 27.5.1+dfsg3-3
- 27.5.1+dfsg3-4
- 27.5.1+dfsg3-5
- 27.5.1+dfsg3-6
- 27.5.1+dfsg4-1
- 27.5.1+dfsg4-2
- 28.5.2+dfsg1-1
- 28.5.2+dfsg2-1
- 28.5.2+dfsg3-1
- 28.5.2+dfsg3-2
- 28.5.2+dfsg4-1
- 28.5.2+dfsg4-2
- 28.5.2+dfsg4-3
- 28.5.2+dfsg4-4
- 28.5.2+dfsg4-5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io Debian:13
- Versions
- 26.1.5+dfsg1-9
- Affected ranges
- ECOSYSTEM: < 26.1.5+dfsg1-9+deb13u1
Update to 26.1.5+dfsg1-9+deb13u1
docker.io Debian:14
- Versions
- 26.1.5+dfsg1-10
- 26.1.5+dfsg1-9
- 27.5.1+dfsg1-1
- 27.5.1+dfsg1-2
- 27.5.1+dfsg2-1
- 27.5.1+dfsg3-1
- 27.5.1+dfsg3-2
- 27.5.1+dfsg3-3
- 27.5.1+dfsg3-4
- 27.5.1+dfsg3-5
- 27.5.1+dfsg3-6
- 27.5.1+dfsg4-1
- 27.5.1+dfsg4-2
- 28.5.2+dfsg1-1
- 28.5.2+dfsg2-1
- 28.5.2+dfsg3-1
- 28.5.2+dfsg3-2
- 28.5.2+dfsg4-1
- 28.5.2+dfsg4-2
- Affected ranges
- ECOSYSTEM: < 28.5.2+dfsg4-3
Update to 28.5.2+dfsg4-3
docker.io Ubuntu:Pro:16.04:LTS
- Versions
- 1.6.2~dfsg1-1ubuntu4
- 1.10.2-0ubuntu3
- 1.10.2-0ubuntu4
- 1.10.3-0ubuntu1
- 1.10.3-0ubuntu4
- 1.10.3-0ubuntu5
- 1.10.3-0ubuntu6
- 1.11.2-0ubuntu5~16.04
- 1.12.1-0ubuntu13~16.04.1
- 1.12.3-0ubuntu4~16.04.2
- 1.12.6-0ubuntu1~16.04.1
- 1.13.1-0ubuntu1~16.04.2
- 17.03.2-0ubuntu2~16.04.1
- 18.06.1-0ubuntu1~16.04.2
- 18.06.1-0ubuntu1.2~16.04.1
- 18.09.2-0ubuntu1~16.04.1
- 18.09.5-0ubuntu1~16.04.2
- 18.09.7-0ubuntu1~16.04.1
- 18.09.7-0ubuntu1~16.04.4
- 18.09.7-0ubuntu1~16.04.5
- 18.09.7-0ubuntu1~16.04.6
- 18.09.7-0ubuntu1~16.04.7
- 18.09.7-0ubuntu1~16.04.9+esm1
- 18.09.7-0ubuntu1~16.04.9+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io Ubuntu:Pro:18.04:LTS
- Versions
- 1.13.1-0ubuntu6
- 17.03.2-0ubuntu1
- 17.03.2-0ubuntu3
- 17.03.2-0ubuntu5
- 17.12.1-0ubuntu1
- 18.06.1-0ubuntu1~18.04.1
- 18.06.1-0ubuntu1.2~18.04.1
- 18.09.2-0ubuntu1~18.04.1
- 18.09.5-0ubuntu1~18.04.2
- 18.09.7-0ubuntu1~18.04.1
- 18.09.7-0ubuntu1~18.04.3
- 18.09.7-0ubuntu1~18.04.4
- 19.03.6-0ubuntu1~18.04.1
- 19.03.6-0ubuntu1~18.04.2
- 19.03.6-0ubuntu1~18.04.3
- 20.10.2-0ubuntu1~18.04.2
- 20.10.2-0ubuntu1~18.04.3
- 20.10.7-0ubuntu1~18.04.1
- 20.10.7-0ubuntu1~18.04.2
- 20.10.7-0ubuntu5~18.04.2
- 20.10.7-0ubuntu5~18.04.3
- 20.10.12-0ubuntu2~18.04.1
- 20.10.21-0ubuntu1~18.04.2
- 20.10.21-0ubuntu1~18.04.3
- 20.10.21-0ubuntu1~18.04.3+esm1
- 20.10.21-0ubuntu1~18.04.3+esm2
- 20.10.21-0ubuntu1~18.04.3+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io Ubuntu:Pro:20.04:LTS
- Versions
- 19.03.2-0ubuntu1
- 19.03.6-0ubuntu1
- 19.03.8-0ubuntu1
- 19.03.8-0ubuntu1.20.04
- 19.03.8-0ubuntu1.20.04.1
- 19.03.8-0ubuntu1.20.04.2
- 20.10.2-0ubuntu1~20.04.2
- 20.10.2-0ubuntu1~20.04.3
- 20.10.7-0ubuntu1~20.04.1
- 20.10.7-0ubuntu1~20.04.2
- 20.10.7-0ubuntu5~20.04.1
- 20.10.7-0ubuntu5~20.04.2
- 20.10.12-0ubuntu2~20.04.1
- 20.10.21-0ubuntu1~20.04.1
- 20.10.21-0ubuntu1~20.04.2
- 20.10.21-0ubuntu1~20.04.4
- 20.10.21-0ubuntu1~20.04.5
- 20.10.21-0ubuntu1~20.04.6
- 20.10.21-0ubuntu1~20.04.6+esm1
- 20.10.21-0ubuntu1~20.04.6+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io-app Ubuntu:Pro:20.04:LTS
- Versions
- 20.10.25-0ubuntu1~20.04.1
- 20.10.25-0ubuntu1~20.04.2
- 24.0.5-0ubuntu1~20.04.1
- 24.0.7-0ubuntu2~20.04.1
- 26.1.3-0ubuntu1~20.04.1
- 26.1.3-0ubuntu1~20.04.1+esm1
- Affected ranges
- ECOSYSTEM: < 26.1.3-0ubuntu1~20.04.1+esm2
Update to 26.1.3-0ubuntu1~20.04.1+esm2
docker.io-app Ubuntu:22.04:LTS
- Versions
- 20.10.25-0ubuntu1~22.04.1
- 20.10.25-0ubuntu1~22.04.2
- 24.0.5-0ubuntu1~22.04.1
- 24.0.7-0ubuntu2~22.04.1
- 26.1.3-0ubuntu1~22.04.1
- 27.5.1-0ubuntu3~22.04.1
- 27.5.1-0ubuntu3~22.04.2
- 28.2.2-0ubuntu1~22.04.1
- 29.1.3-0ubuntu3~22.04.1
- Affected ranges
- ECOSYSTEM: < 29.1.3-0ubuntu3~22.04.2
Update to 29.1.3-0ubuntu3~22.04.2
docker.io Ubuntu:Pro:22.04:LTS
- Versions
- 20.10.7-0ubuntu5
- 20.10.7-0ubuntu7
- 20.10.12-0ubuntu1
- 20.10.12-0ubuntu2
- 20.10.12-0ubuntu3
- 20.10.12-0ubuntu3+gke1.24.1
- 20.10.12-0ubuntu4
- 20.10.21-0ubuntu1~22.04.2
- 20.10.21-0ubuntu1~22.04.3
- 20.10.21-0ubuntu1~22.04.5
- 20.10.21-0ubuntu1~22.04.6
- 20.10.21-0ubuntu1~22.04.7
- 20.10.21-0ubuntu1~22.04.7+esm1
- 20.10.21-0ubuntu1~22.04.7+esm2
- 20.10.21-0ubuntu1~22.04.8
- 20.10.21-0ubuntu1~22.04.8+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io-app Ubuntu:24.04:LTS
- Versions
- 24.0.5-0ubuntu1
- 24.0.7-0ubuntu1
- 24.0.7-0ubuntu2
- 24.0.7-0ubuntu3
- 24.0.7-0ubuntu4
- 24.0.7-0ubuntu4.1
- 26.1.3-0ubuntu1~24.04.1
- 27.5.1-0ubuntu3~24.04.1
- 27.5.1-0ubuntu3~24.04.2
- 28.2.2-0ubuntu1~24.04.1
- 29.1.3-0ubuntu3~24.04.1
- Affected ranges
- ECOSYSTEM: < 29.1.3-0ubuntu3~24.04.2
Update to 29.1.3-0ubuntu3~24.04.2
docker.io Ubuntu:Pro:24.04:LTS
- Versions
- 20.10.24+dfsg1-1ubuntu2
- 20.10.25+dfsg1-2ubuntu1
- 20.10.25+dfsg1-2ubuntu1+esm1
- 20.10.25+dfsg1-2ubuntu1+esm2
- 20.10.25+dfsg1-2ubuntu1.24.04.1
- 20.10.25+dfsg1-2ubuntu1.24.04.1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io Ubuntu:25.10
- Versions
- 26.1.5+dfsg1-9ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io-app Ubuntu:25.10
- Versions
- 27.5.1-0ubuntu3
- 27.5.1-0ubuntu4
- 28.2.2-0ubuntu1
- 29.1.3-0ubuntu3~25.10.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io Ubuntu:26.10
- Versions
- 27.5.1+dfsg4-2ubuntu1
- 28.5.2+dfsg4-5ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io-app Ubuntu:26.10
- Versions
- 29.1.3-0ubuntu4
- Affected ranges
- ECOSYSTEM: < 29.1.3-0ubuntu5
Update to 29.1.3-0ubuntu5
docker.io Ubuntu:26.04:LTS
- Versions
- 26.1.5+dfsg1-9ubuntu1
- 27.5.1+dfsg4-1ubuntu1
- 27.5.1+dfsg4-2ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
docker.io-app Ubuntu:26.04:LTS
- Versions
- 28.2.2-0ubuntu1
- 29.1.2-0ubuntu1
- 29.1.3-0ubuntu1
- 29.1.3-0ubuntu2
- 29.1.3-0ubuntu3
- 29.1.3-0ubuntu4
- Affected ranges
- ECOSYSTEM: < 29.1.3-0ubuntu4.1
Update to 29.1.3-0ubuntu4.1