CVE-2026-97029

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

CVE-2026-97029

A vulnerability in Flatpak allows a sandboxed application to bypass process ID namespace separation . Specifically, the kill(0, signal) or killpg(0, signal) calls can reach processes outside the sandbox if they share the same process group . A malicious or compromised Flatpak app can exploit this...

CVE-2026-97029 Flatpak: flatpak: sandboxed app can signal unsandboxed processes in the same process group

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

EUVD-2026-88627

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...

CVE-2026-97029

Flatpak's process ID namespace separation does not prevent a sandboxed app's kill0, signal or killpg0, signal calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processe...