What’s Vulnerable › Vulnerabilities

CVE-2021-47688

• Severity: medium (CVSS 5.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-23 · updated 2026-06-17
• Weakness: CWE-696

Description

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: from 0.2.0 before 0.2.2 — fixed in 0.2.2

How to fix

Upgrade to a fixed version: WhiteBeam 0.2.2. Check the vendor advisory for mitigations.

References

• https://github.com/WhiteBeamSec/WhiteBeam/pull/22
• https://github.com/WhiteBeamSec/WhiteBeam/security/advisories/GHSA-3f8r-9483-pfxj
• https://github.com/WhiteBeamSec/WhiteBeam/security/policy

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