Debian/flatpak: medium 5.7
Flatpak's process ID namespace separation does not prevent a sandboxed app's kill(0, signal) or killpg(0, signal) calls from reaching processes outside the sandbox that share the same process group. A
Action: Upgrade flatpak to 1.16.6-1~deb13u3 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.16.6-1~deb13u3 | - |
Fixed versions
| 1.16.6-1~deb13u3 |
Sources
- osv: DEBIAN-CVE-2026-97029#Debian:13/flatpak
- https://security-tracker.debian.org/tracker/CVE-2026-97029
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