DEBIAN-CVE-2026-47766

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Source
https://security-tracker.debian.org/tracker/CVE-2026-47766
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47766.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-47766
Upstream
Published
2026-08-14T17:18:18Z
Modified
2026-09-01T16:06:47Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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

crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs /dev directory without O_NOFOLLOW. If an OCI bundle contains rootfs/dev as a symlink and the bundle configuration does not mount /dev, crun follows that symlink and creates the default device nodes and stdio symlinks at the symlink target outside the container rootfs. In a local rootful crun replay, this created fixed device nodes and symlinks outside the rootfs before crun returned failure. A pre-existing file named ptmx in the target directory was also replaced by crun's forced ptmx -> pts/ptmx symlink. Version 1.28 fixes the issue.

References

Affected packages

Debian:12 / crun

Package

Name
crun
Purl
pkg:deb/debian/crun?arch=source&distro=bookworm

Affected ranges

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

Affected versions

1.*
1.8.1-1
1.8.1-1+deb12u1
1.8.5-1
1.8.6-1
1.8.7-1
1.9-1
1.10-1
1.11-1
1.11.1-1
1.12-1
1.13-1
1.14-1
1.14.1-1
1.14.4-1
1.15-1
1.16-1
1.16.1-1
1.17-1
1.18-1
1.18.1-1
1.18.2-1
1.19.1-1
1.20-1
1.21-1
1.21-2
1.21-3
1.24-1
1.26-1
1.27-1
1.27.1-1
1.28-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47766.json"

Debian:13 / crun

Package

Name
crun
Purl
pkg:deb/debian/crun?arch=source&distro=trixie

Affected ranges

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

Affected versions

1.*
1.21-1
1.21-2
1.21-3
1.24-1
1.26-1
1.27-1
1.27.1-1
1.28-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47766.json"

Debian:14 / crun

Package

Name
crun
Purl
pkg:deb/debian/crun?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.28-1

Affected versions

1.*
1.21-1
1.21-2
1.21-3
1.24-1
1.26-1
1.27-1
1.27.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47766.json"