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.
History

Sat, 26 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Title Flatpak LD Cache Symlink Attack flatpak: Flatpak: Low integrity or availability impact via symlink manipulation
Weaknesses CWE-22
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 23 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Title Flatpak LD Cache Symlink Attack

Wed, 23 Sep 2026 17:00:00 +0000

Type Values Removed Values Added
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.
First Time appeared Flatpak
Flatpak flatpak
Weaknesses CWE-61
CPEs cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*
Vendors & Products Flatpak
Flatpak flatpak
References
Metrics cvssV3_1

{'score': 4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-23T16:54:16.931Z

Updated: 2026-09-26T22:51:21.873Z

Reserved: 2026-09-23T16:54:16.535Z

Link: CVE-2026-96807

cve-icon Vulnrichment

Updated: 2026-09-26T22:49:06.208Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-23T17:17:25.703

Modified: 2026-09-26T23:16:42.380

Link: CVE-2026-96807

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-23T16:54:16Z

Links: CVE-2026-96807 - Bugzilla