CVE-2026-97026

Published: Set 28, 2026 Last Modified: Set 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 3,9
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: low

Description

AI Translation Available

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.

378

Creation of Temporary File With Insecure Permissions

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Authorization Other Integrity
Potential Impacts:
Read Application Data Other
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-97026
https://access.redhat.com/security/cve/CVE-2026-97026
https://bugzilla.redhat.com/show_bug.cgi?id=2542637
https://bugzilla.redhat.com/show_bug.cgi?id=2542637
https://github.com/flatpak/flatpak/security/advisories/GHSA…
https://github.com/flatpak/flatpak/security/advisories/GHSA-r9w3-qx54-qvc8