Vendor
Flatpak vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 18 vulnerabilities in Flatpak: 0 in the last 7 days and 13 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-55889, was published on 23 October 2026. 3 vulnerabilities in the last four weeks, down 67% on the four before (9). 0 critical against 1. 3 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 13
- Critical, all time
- 2
- Exploited in the wild
- 0
About Flatpak
An open-source project providing a sandboxed application packaging and distribution framework for Linux.
Flatpak technologies
Latest Flatpak vulnerabilities
- CVE-2026-55889: XDG Desktop Portal predictable token generation in FileTransferinfo
- CVE-2026-55888: XDG Desktop Portal arbitrary file access in FileChooser.SaveFilesinfo
- CVE-2026-92162: Flatpak path traversal in system-helper via crafted architecture nameinfo
- CVE-2026-94422: xdg-dbus-proxy message filtering bypass in D-Bus proxyhighCVSS 8.8EPSS 0.7%
- CVE-2026-97029: Flatpak process ID namespace isolation bypassmediumCVSS 5.7
- CVE-2026-97024: Flatpak path traversal in files/etc directory during app deploymenthighCVSS 7.1
- CVE-2026-97023: Flatpak path traversal in export/bin directory handlinghighCVSS 7.1
- CVE-2026-96280: Flatpak heap buffer overflow in OCI delta stream parserhighCVSS 7.5
- CVE-2026-96279: Flatpak arbitrary file disclosure via OCI registry hardlinkmediumCVSS 6.5
- CVE-2026-96276: Flatpak path traversal in build-init extension handlingcriticalCVSS 9.8EPSS 0.5%
- CVE-2026-96275: Flatpak arbitrary file write via path traversal in extra-data extractionhighCVSS 8.8EPSS 0.4%
- CVE-2026-86320: flatpak-builder arbitrary code execution via Git hooks in patch sourceshighCVSS 7.8EPSS 0.2%
- CVE-2026-76925: Flatpak TOCTOU race condition in SystemHelpermediumCVSS 5.8EPSS 0.1%
- CVE-2026-40354: Flatpak xdg-desktop-portal symlink attack in Trash portallowCVSS 2.9
- CVE-2026-39977: flatpak-builder is a tool to build flatpaks from source. From 1.4.5 to before 1.4.8, the license-files manifest key…mediumCVSS 6.3EPSS 0.3%
- CVE-2026-34079: Flatpak arbitrary file deletion via ld.so cache path traversalhighCVSS 7.5EPSS 0.3%
- CVE-2026-34078: Flatpak sandbox escape via symlink following in sandbox-exposecriticalCVSS 10EPSS 1.6%
- CVE-2026-34080: Flatpak xdg-dbus-proxy policy parser bypass in eavesdrop restrictionsmediumCVSS 5.5EPSS 0.2%
Most severe Flatpak vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-34078: Flatpak sandbox escape via symlink following in sandbox-exposecriticalCVSS 10EPSS 1.6%
- CVE-2026-96276: Flatpak path traversal in build-init extension handlingcriticalCVSS 9.8EPSS 0.5%
- CVE-2026-94422: xdg-dbus-proxy message filtering bypass in D-Bus proxyhighCVSS 8.8EPSS 0.7%
- CVE-2026-96275: Flatpak arbitrary file write via path traversal in extra-data extractionhighCVSS 8.8EPSS 0.4%
- CVE-2026-86320: flatpak-builder arbitrary code execution via Git hooks in patch sourceshighCVSS 7.8EPSS 0.2%
- CVE-2026-34079: Flatpak arbitrary file deletion via ld.so cache path traversalhighCVSS 7.5EPSS 0.3%
- CVE-2026-96280: Flatpak heap buffer overflow in OCI delta stream parserhighCVSS 7.5
- CVE-2026-97024: Flatpak path traversal in files/etc directory during app deploymenthighCVSS 7.1
- CVE-2026-97023: Flatpak path traversal in export/bin directory handlinghighCVSS 7.1
- CVE-2026-96279: Flatpak arbitrary file disclosure via OCI registry hardlinkmediumCVSS 6.5
Vulnerabilities per week
3 vulnerabilities in the last four weeks, down 67% on the four before (9). 0 critical against 1. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 1 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 1 | 0 | |
| 21 Sep 2026 | 4 | 1 | |
| 28 Sep 2026 | 4 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 3 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Flatpak vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/flatpak)<a href="https://junglewise.ai/threats/vendors/flatpak"><img src="https://junglewise.ai/threats/vendors/flatpak/badge.svg" alt="Flatpak vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/flatpak.json, and this page as text at https://junglewise.ai/threats/vendors/flatpak.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Flatpak vulnerabilities", https://junglewise.ai/threats/vendors/flatpak, 9 November 2026.