CVE-2026-40044

CRITICAL

Pachno 1.0.6 FileCache Deserialization Remote Code Execution

Title source: cna
STIX 2.1

Description

Pachno 1.0.6 contains a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting malicious serialized objects into cache files. Attackers can write PHP object payloads to world-writable cache files with predictable names in the cache directory, which are unserialized during framework bootstrap before authentication checks occur.

References (2)

Core 2
Core References
Third Party Advisory third-party-advisory
Zero Science Lab Disclosure
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5986.php
Third Party Advisory third-party-advisory
VulnCheck Advisory: Pachno 1.0.6 FileCache Deserialization Remote Code Execution
https://www.vulncheck.com/advisories/pachno-filecache-deserialization-remote-code-execution

Scores

CVSS v3 9.8
EPSS 0.0048
EPSS Percentile 37.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-502
Status published
Products (2)
Pachno/Pachno 1.0.6
pancho/Pachno 1.0.6
Published Apr 13, 2026
Tracked Since Apr 14, 2026