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).

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
WineHQ Wine unknown
Version Status Constraints
0.9 affected ≤ 11.0

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Project Subscriptions

Vendors Products
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Wine Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

Remove /usr/share/applications/wine.desktop from the system to unregister the MIME handler that introduces the vulnerability.

References
Link Providers
https://bugs.winehq.org/show_bug.cgi?id=59767 cve-icon
https://www.openwall.com/lists/oss-security/2026/05/19/1 cve-icon
History

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-24T20:52:36.535Z

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

Link: CVE-2026-48831

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-24T22:30:09Z

Weaknesses