Creation of Temporary File With Insecure Permissions Affecting flatpak package, versions <1.16.6-1~deb13u3


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.13% (2nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-FLATPAK-20257450
  • published29 Sept 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-97025  (opens in a new tab)
CWE-378  (opens in a new tab)

How to fix?

Upgrade Echo:latest flatpak to version 1.16.6-1~deb13u3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream flatpak package and not the flatpak package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Flatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources (e.g. as used by Fedora) are affected; libostree-based sources such as Flathub are not.

CVSS Base Scores

version 3.1