CVE-2026-97026

3.9 LOWpublic exploit available

Published 2026-09-28 · Updated 2026-09-28

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L

Weaknesses

CWE-378

Public exploit & PoC references

https://github.com/flatpak/flatpak/security/advisories/GHSA-r9w3-qx54-qvc8

All references

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

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

Related CVEs

HIGHCVE-2026-25265
LOWCVE-2026-97025PoC

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