Vulnerability in Jvoisin Snuffleupagus

CVE-2026-22034

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.

EPSS: 0.007 (50.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-22034?
CVE-2026-22034 is a critical-severity vulnerability in Jvoisin Snuffleupagus, classified under CWE-636. CVSS score: 9.8/10. Published 2026-01-08.
How severe is CVE-2026-22034?
Critical severity. CVSS v3 base score is 9.8 out of 10.