CVE-2026-40044 Details
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.
A deserialization vulnerability has been identified in Pachno version 1.0.6, allowing unauthenticated attackers to execute arbitrary code. This issue arises because the application unserializes data from cache files during the initial framework bootstrap, before any authentication or routing is applied. The cache files, which are created with world-writable permissions and predictable names, can be manipulated by attackers to inject malicious PHP object payloads. Once injected, these payloads are executed on the server during the next HTTP request.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 13, 2026CISA-ADP
Assessed Apr 13, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.vulncheck.com/advisories/pachno-filecache-deserialization-remote-code-execution | [email protected] | AdvisoryBundle |
| https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5986.php | [email protected] | AdvisoryExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Pachno | <= 1.0.6 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | New CVE Received | [email protected] |