DEBIAN-CVE-2026-34078

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Source
https://security-tracker.debian.org/tracker/CVE-2026-34078
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34078.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34078
Upstream
Published
2026-04-07T22:16:21Z
Modified
2026-09-14T17:03:09Z
Severity
  • 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts the resolved host path in the sandbox. This gives apps access to all host files and can be used as a primitive to gain code execution in the host context. This vulnerability is fixed in 1.16.4.

References

Affected packages

Debian:12 / flatpak

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.14.10-1~deb12u2

Affected versions

1.*
1.14.4-1
1.14.4-1+deb12u1~bpo11+1
1.14.4-1+deb12u1
1.14.4-2
1.14.5-1
1.14.6-1~deb13u1
1.14.6-1
1.14.8-1~deb12u1
1.14.8-1
1.14.10-1~deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34078.json"

Debian:13 / flatpak

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16.6-1~deb13u1

Affected versions

1.*
1.16.1-1
1.16.1-2
1.16.1-3
1.16.2-1~deb13u1
1.16.2-1
1.16.3-1~deb13u1
1.16.3-1
1.16.4-1
1.16.4-2
1.16.5-1
1.16.6-1~deb13u1~bpo12+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34078.json"

Debian:14 / flatpak

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.16.4-1

Affected versions

1.*
1.16.1-1
1.16.1-2
1.16.1-3
1.16.2-1~deb13u1
1.16.2-1
1.16.3-1~deb13u1
1.16.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34078.json"