DEBIAN-CVE-2026-121542

Source
https://security-tracker.debian.org/tracker/CVE-2026-121542
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121542.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-121542
Upstream
Published
2026-11-03T22:19:46Z
Modified
2026-11-04T23:01:40Z
Severity
  • 1.8 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

In Docker Buildx versions v0.19.0 through v0.38.0, an untrusted Bake definition may expose files accessible to the Buildx client without the expected fs.read approval. Under certain conditions, paths under the same parent directory as the current working directory whose names use the working directory's basename as a prefix can skip the filesystem entitlement check. Exploitation requires specific matching filenames next to the current project directory. Users who run untrusted Bake definitions may be affected. The issue is fixed in v0.38.1.

References

Affected packages

Debian:13 / docker-buildx

Package

Name
docker-buildx
Purl
pkg:deb/debian/docker-buildx?arch=source&distro=trixie

Affected ranges

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

Affected versions

0.*
0.13.1+ds1-3
0.19.3+ds1-1
0.19.3+ds1-2
0.19.3+ds1-3
0.19.3+ds1-4
0.29.1+ds1-1
0.29.1+ds1-2
0.29.1+ds1-3
0.29.1+ds1-4

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121542.json"

Debian:14 / docker-buildx

Package

Name
docker-buildx
Purl
pkg:deb/debian/docker-buildx?arch=source&distro=forky

Affected ranges

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

Affected versions

0.*
0.13.1+ds1-3
0.19.3+ds1-1
0.19.3+ds1-2
0.19.3+ds1-3
0.19.3+ds1-4
0.29.1+ds1-1
0.29.1+ds1-2
0.29.1+ds1-3
0.29.1+ds1-4

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-121542.json"