DEBIAN-CVE-2026-87766

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Source
https://security-tracker.debian.org/tracker/CVE-2026-87766
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-87766
Upstream
Published
2026-09-09T09:17:12Z
Modified
2026-09-10T05:02:39Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0.

References

Affected packages

Debian:12 / bubblewrap

Package

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

Affected ranges

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

Affected versions

0.*
0.8.0-2
0.8.0-2+deb12u1
0.9.0-1
0.10.0-1
0.10.0+30+g0545e72-1
0.11.0-1
0.11.0-2
0.11.1-1
0.11.2-1
0.11.2-2
0.12.0-1~deb13u1
0.12.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json"

Debian:13 / bubblewrap

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.12.0-1~deb13u1

Affected versions

0.*
0.11.0-2
0.11.0-2+deb13u1
0.11.1-1
0.11.2-1
0.11.2-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json"

Debian:14 / bubblewrap

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.12.0-1

Affected versions

0.*
0.11.0-2
0.11.1-1
0.11.2-1
0.11.2-2
0.12.0-1~deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87766.json"