CVE-2026-97026

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.

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Produits concernés

• Red Hat Enterprise Linux 10
• Red Hat Enterprise Linux 7
• Red Hat Enterprise Linux 8
• Red Hat Enterprise Linux 9

Scores CVSS

Faiblesses (CWE)

• CWE-378

Références

• https://access.redhat.com/security/cve/CVE-2026-97026
• https://bugzilla.redhat.com/show_bug.cgi?id=2542637
• https://github.com/flatpak/flatpak/security/advisories/GHSA-r9w3-qx54-qvc8

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories