CVE-2026-22034 CRITICAL

CVE-2026-22034: Snuffleupagus vulnerable to RCE on instances with upload validation enabled but without the VLD package

Vendor Jvoisin
Product snuffleupagus
Weakness CWE-636
Published January 8, 2026
Last update January 8, 2026
View on NVD All CVEs

CVSS base score

9.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Snuffleupagus is a module that raises the cost of attacks against website by killing bug classes and providing a virtual patching system. On deployments of Snuffleupagus prior to version 0.13.0 with the non-default upload validation feature enabled and configured to use one of the upstream validation scripts based on Vulcan Logic Disassembler (VLD) while the VLD extension is not available to the CLI SAPI, all files from multipart POST requests are evaluated as PHP code. The issue was fixed in version 0.13.0.

Key dates

02Disclosure timeline

January 8, 2026 CVE published
January 8, 2026 Record updated