CVE catalog
CVE-2026-34079
Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the
- Severity
- Critical · CVSS 9.3
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.32% · Oct 25, 2026
Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on the host. This vulnerability is fixed in 1.16.4.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | flatpak | sid | 1.18.4-1 | fixed |
| Debian | flatpak | forky | 1.18.4-1 | fixed |
| Debian | flatpak | trixie | 1.16.6-1~deb13u2 | fixed |
| Debian | flatpak | trixie-security | 1.16.6-1~deb13u3 | fixed |
| Debian | flatpak | bookworm | 1.14.10-1~deb12u2 | fixed |
| Debian | flatpak | bookworm-security | 1.14.10-1~deb12u2 | fixed |
| Cpe | flatpak | Not reported | 1.16.4 | fixed |
| Cpe | flatpak | Not reported | 1.14.10-1~deb12u2 | fixed |
| Ubuntu | flatpak | noble | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | flatpak-tests | noble | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | gir1.2-flatpak-1.0 | noble | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | libflatpak-dev | noble | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | libflatpak-doc | noble | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | libflatpak0 | noble | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | flatpak | pro | 1.14.4-2 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.5-1 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.5-1build1 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.5-1build4 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.5-1build5 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.5-1build6 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.6-1 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.6-1ubuntu0.1 | vulnerable |
| Ubuntu | flatpak | pro | 1.14.6-1ubuntu0.1+esm1 | fixed |
| Ubuntu | flatpak | 25.10 | 1.16.0-2 | vulnerable |
| Ubuntu | flatpak | 25.10 | 1.16.1-1build1 | vulnerable |
| Ubuntu | flatpak | 25.10 | 1.16.1-2 | vulnerable |
| Ubuntu | flatpak | 25.10 | 1.16.1-2ubuntu1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | flatpak | source | sid | 1.16.4-1 | not yet assigned | Not reported | [1132944] |
| Debian | flatpak | source | forky | 1.16.4-1 | not yet assigned | Not reported | [1132944] |
| Debian | flatpak | source | trixie | 1.16.6-1~deb13u1 | not yet assigned | Not reported | [1132944] |
| Debian | flatpak | source | bookworm | 1.14.10-1~deb12u2 | not yet assigned | Not reported | [1132944] |
| Cpe | flatpak | cpe | Not reported | 1.16.4 | Not reported | Not reported | Not reported |
| Cpe | flatpak | cpe | Not reported | 1.14.10-1~deb12u2 | Not reported | Not reported | Not reported |
| Ubuntu | flatpak | deb | noble | 1.14.6-1ubuntu0.1+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | flatpak-tests | deb | noble | 1.14.6-1ubuntu0.1+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | gir1.2-flatpak-1.0 | deb | noble | 1.14.6-1ubuntu0.1+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libflatpak-dev | deb | noble | 1.14.6-1ubuntu0.1+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libflatpak-doc | deb | noble | 1.14.6-1ubuntu0.1+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | libflatpak0 | deb | noble | 1.14.6-1ubuntu0.1+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | flatpak | deb | pro | 1.14.6-1ubuntu0.1+esm1 | Not reported | UBUNTU-CVE-2026-34079 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [flatpak]Fixed
Details (6)
1.14.10-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
- [flatpak-tests]Fixed
Source package: [flatpak]
Details (6)
1.14.10-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
- [gir1.2-flatpak-1.0]Fixed
Source package: [flatpak]
Details (6)
1.14.10-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
- [libflatpak0]Fixed
Source package: [flatpak]
Details (6)
1.14.10-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
- [libflatpak-dev]Fixed
Source package: [flatpak]
Details (6)
1.14.10-1~deb12u2· amd64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· amd64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· arm64 · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
- [libflatpak-doc]Fixed
Source package: [flatpak]
Details (6)
1.14.10-1~deb12u2· all · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· all · bookwormFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· all · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.16.6-1~deb13u1~bpo12+1· all · bookworm-backportsFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· all · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
1.14.10-1~deb12u2· all · bookworm-securityFixed · Fixed:
1.14.10-1~deb12u2nvd · flatpak · debian · bookworm; nvd · flatpak · debian · 12
[Debian 13 (Trixie)]
- [flatpak]Fixed
Details (6)
1.16.6-1~deb13u1· amd64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· arm64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
- [flatpak-tests]Fixed
Source package: [flatpak]
Details (6)
1.16.6-1~deb13u1· amd64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· arm64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
- [gir1.2-flatpak-1.0]Fixed
Source package: [flatpak]
Details (6)
1.16.6-1~deb13u1· amd64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· arm64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
- [libflatpak0]Fixed
Source package: [flatpak]
Details (6)
1.16.6-1~deb13u1· amd64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· arm64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
- [libflatpak-dev]Fixed
Source package: [flatpak]
Details (6)
1.16.6-1~deb13u1· amd64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· arm64 · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· arm64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u3· amd64 · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
- [libflatpak-doc]Fixed
Source package: [flatpak]
Details (6)
1.16.6-1~deb13u1· all · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· all · trixieFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u1· all · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· all · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u2· all · trixie-security · Historical versionFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
1.16.6-1~deb13u3· all · trixie-securityFixed · Fixed:
1.16.6-1~deb13u1nvd · flatpak · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10541-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-34079]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-34079]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-34079]
- [https://security-tracker.debian.org/tracker/CVE-2026-34079]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34079.json]
- [https://ubuntu.com/security/notices/USN-8741-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1732.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]