CVE-2021-47688: Whitebeam

Medium severity, CVSS 5.7. EPSS: 0.2% chance of exploitation in the next 30 days.

In WhiteBeam 0.2.0 through 0.2.1 before 0.2.2, a user with local access to a server can bypass the allow-list functionality because a file can be truncated in the OpenFileDescriptor action before the VerifyCanWrite action is performed.

Affected products

• Whitebeam Whitebeam: from 0.2.0, before 0.2.2 (fixed in 0.2.2)

Published 2025-06-23. Last modified 2026-06-17.