Flatpak 1.19 Released With Nine Security Fixes
Flatpak 1.19 has been released with nine security fixes, addressing various issues including a possible sandbox escape and local root privilege escalation vulnerability. The new version also includes feature enhancements such as system-wide downgrades and improved Bash completion. Additionally, Flatpak 1.18.1 has been released as a stable point release with ten security fixes.
- ▪Flatpak 1.19 includes nine security fixes, including a possible sandbox escape with full host file-system read/write access via a symlink attack.
- ▪A local root privilege escalation vulnerability via revokefs symlink path traversal has been resolved in both Flatpak 1.19 and 1.18.1.
- ▪Flatpak 1.19 features system-wide downgrades through the system helper and improved Bash completion.
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| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/Flatpak-1.19-Released |
| Publication time | Tue, 11 Aug 2026 09:41:20 -0400 |
| Retrieval time | 2026-08-11T13:45:43.143Z |
| Last seen | 2026-08-11T13:45:43.143Z |
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Flatpak 1.19 Released With Nine Security Fixes Written by Michael Larabel in Desktop on 11 August 2026 at 09:41 AM EDT. Add A Comment Flatpak 1.19 was released today as a new development release along with the Flatpak 1.18.1 stable point release. Both of these releases ship a number of newly-discovered security issues with this app sandboxing and distribution tech. There are nine security fixes to Flatpak 1.19 and ten for Flatpak 1.18.1. These security fixes include a a possible sandbox escape with full host file-system read/write access via a symlink attack. There is also a local root privilege escalation vulnerability via revokefs symlink path traversal. There are also multiple arbitrary root read/writes, a possible buffer overflow on 32-bit systems, and other security issues resolved.
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