CVE-2026-33430
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
Briefcase: Windows MSI Installer Privilege Escalation via Insecure Directory Permissions
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | briefcase | >=0.3.0,<0.3.26 | 0.3.26 |
References
- https://github.com/beeware/briefcase/security/advisories/GHSA-r3r2-35v9-v238
- https://nvd.nist.gov/vuln/detail/CVE-2026-33430
- https://github.com/beeware/briefcase/issues/2759
- https://github.com/beeware/briefcase-windows-VisualStudio-template/pull/85
- https://github.com/beeware/briefcase-windows-app-template/pull/86
- https://github.com/beeware/briefcase
- https://github.com/pypa/advisory-database/tree/main/vulns/briefcase/PYSEC-2026-27.yaml
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.