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CVE-2026-22034 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/jvoisin/snuffleupagus/blob/9278dc77bab2a219e770a1b31dd6797bc9070e37/src/sp_upload_validation.c#L92-L100	[email protected]	Product
https://github.com/jvoisin/snuffleupagus/blob/v0.12.0/scripts/upload_validation.php	[email protected]	Product
https://github.com/jvoisin/snuffleupagus/blob/v0.12.0/scripts/upload_validation.py	[email protected]	Product
https://github.com/jvoisin/snuffleupagus/commit/9278dc77bab2a219e770a1b31dd6797bc9070e37	[email protected]	Patch
https://github.com/jvoisin/snuffleupagus/security/advisories/GHSA-c4ch-xw5p-2mvc	[email protected]	ExploitPatchVendor Advisory
https://github.com/php/php-src/blob/e4098da58a9eaee759d728d98a27d809cde37671/ext/standard/dl.c#L165-L166	[email protected]	Product
https://github.com/php/php-src/blob/e4098da58a9eaee759d728d98a27d809cde37671/main/rfc1867.c#L1269-L1274	[email protected]	Product
https://snuffleupagus.readthedocs.io/config.html#upload-validation	[email protected]	Product

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-636	Not Failing Securely ('Failing Open')	[email protected]

Affected Products

Product	Versions
jvoisin snuffleupagus	< 0.13.0
CPE cpe:2.3:a:jvoisin:snuffleupagus:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Mar 9, 2026	Initial Analysis	[email protected]
Jan 8, 2026	New CVE Received	[email protected]