CVE-2021-33564 exploit

Exploit for CVE-2021-33564. CVSS 9.8.

Published 20 Oct 2026Updated 20 Oct 20265 sources
CVSS 9.8 PoC CANDIDATE

What happened

Argument injection in Dragonfly Ruby gem enables arbitrary file read and write via Refinery images.

Affected versions

Unknown product: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references