CVE-2026-96807

4.0 mediumEPSS 0.1%

Medium (4.0). EPSS 0.1% chance of exploitation in the next 30 days.

In Flatpak before 1.18.1, a malicious sandboxed app can replace ~/.var/app/$appid/.ld.so with a symlink, causing regenerate_ld_cache to write files at an arbitrary location. The filenames and content are not attacker controlled, making this hard to exploit.

Severity

CVSS 3.1

4.0 medium

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

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
CWE: CWE-61
Published: 2026-09-23
Modified: 2026-09-26
Record from: the NVD, synced 2026-10-19

References

https://github.com/flatpak/flatpak/security/advisories/GHSA-99wv-m8rp-g58x

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