CVE-2026-97026
LOW
INFO
Priority: 0.00
BB Relevance:
23/100
Published: 2026-09-28
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
Required
S:
Unchanged
C:
Low
I:
None
A:
Low
Description
Flatpak creates temporary child repository directories under the user cache with world-writable permissions (0777). On multi-user systems with a permissive umask, other local users could read or modify the temporary directory used while installing apps or runtimes, potentially causing installation failures (denial of service); tampered content would fail signature/digest verification rather than being trusted.