NIXPKGS-2026-2783

GitHub issue published 9 hours ago

Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull

Permalink CVE-2026-96283

3.3 LOW

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): Low (L)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): None (N)
Modified Availability (MA): Low (L)

updated 9 hours ago by @LeSuisse Activity log

Created suggestion 15 hours ago
@LeSuisse ignored
5 packages
- flatpak-builder
- flatpak-xdg-utils
- flatpak-builder-tools
- kdePackages.flatpak-kcm
- haskellPackages.cabal-flatpak
9 hours ago
@LeSuisse accepted 9 hours ago
@LeSuisse ignored maintainer @getchoo 9 hours ago maintainer.ignore
@LeSuisse published on GitHub 9 hours ago

Flatpak: flatpak: flatpak-system-helper cross-user cancelpull orphans another user's ongoing pull

By calling org.freedesktop.Flatpak.SystemHelper.CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped.