DEBIAN-CVE-2026-33747

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Source
https://security-tracker.debian.org/tracker/CVE-2026-33747
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33747.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-33747
Upstream
Published
2026-03-27T01:16:21Z
Modified
2026-09-14T17:03:08Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

20.*
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.*
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+dfsg1-2
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
26.1.5+dfsg1-10
27.*
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.*
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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33747.json"

Debian:13 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
26.1.5+dfsg1-9+deb13u1

Affected versions

26.*
26.1.5+dfsg1-9

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33747.json"

Debian:14 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
28.5.2+dfsg4-3

Affected versions

26.*
26.1.5+dfsg1-9
26.1.5+dfsg1-10
27.*
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.*
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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33747.json"