Wine ships a .desktop file that registers itself as a MIME handler for EXE files and several other Windows executable file types. In some configurations, handling of an EXE file causes that file to be blindly executed with the permissions of the invoker. This allows escaping Flatpak and Snap sandboxes, because MIME handlers are not intended for use by code interpreters and loaders. NOTE: some parties feel that this is not a bug to be addressed in Wine, because there is no known solution that avoids a severe loss of usability (Wine could be a binfmt-misc handler, but binfmt-misc does not exist on all platforms supported by Wine).
History

Tue, 26 May 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 26 May 2026 13:45:00 +0000

Type Values Removed Values Added
References

Sun, 24 May 2026 22:45:00 +0000

Type Values Removed Values Added
Title Wine MIME handler can execute Windows executables with user privileges, allowing Flatpak/Snap sandbox escape

Sun, 24 May 2026 21:30:00 +0000

Type Values Removed Values Added
Description Wine ships a .desktop file that registers itself as a MIME handler for EXE files and several other Windows executable file types. In some configurations, handling of an EXE file causes that file to be blindly executed with the permissions of the invoker. This allows escaping Flatpak and Snap sandboxes, because MIME handlers are not intended for use by code interpreters and loaders. NOTE: some parties feel that this is not a bug to be addressed in Wine, because there is no known solution that avoids a severe loss of usability (Wine could be a binfmt-misc handler, but binfmt-misc does not exist on all platforms supported by Wine).
First Time appeared Winehq
Winehq wine
Weaknesses CWE-669
CPEs cpe:2.3:a:winehq:wine:*:*:*:*:*:*:*:*
Vendors & Products Winehq
Winehq wine
References
Metrics cvssV4_0

{'score': 7.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:N/V:D/U:Clear'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-27T03:55:47.826Z

Reserved: 2026-05-24T20:52:35.810Z

Link: CVE-2026-48831

cve-icon Vulnrichment

Updated: 2026-05-25T03:07:02.395Z

cve-icon NVD

Status : Deferred

Published: 2026-05-24T22:16:16.017

Modified: 2026-05-26T20:19:21.240

Link: CVE-2026-48831

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-24T23:15:10Z