Servers and applications
GHSA-hq78-cm2m-h24h
Image transform class guard with `class:null` and `__class` bypass can lead to RCE
- Severity
- High
- Published
- 2 Nov 2026
- Last changed
- 2 Nov 2026
- Added to UpHeron
- 3 Nov 2026
- Fixed in
- 5.11.4
- Sources
- Project advisories (GitHub)
Affected software
| Software | Affected versions |
|---|---|
Craft CMSServers and applications · github:craftcms/cms |
|
References
- GitHub Advisory Database https://github.com/advisories/GHSA-hq78-cm2m-h24h
- github.com https://github.com/craftcms/cms/security/advisories/GHSA-hq78-cm2m-h24h