CVE-2026-96807 — MEDIUM (4.0)

Vulnerability Description

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.

CVSS Score

4.0

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-61

References

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

FAQ

What is CVE-2026-96807?

CVE-2026-96807 is a vulnerability with a CVSS score of 4.0 (MEDIUM). 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 ...

How severe is CVE-2026-96807?

CVE-2026-96807 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-96807?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.