CVE-2026-40044
Pachno 1.0.6 FileCache Deserialization Remote Code Execution
- State
- Published
- Severity
- 9.3 Critical
- Published
- Apr 13, 2026
- Updated
- May 12, 2026
- Reserved
- Apr 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-502 Deserialization of Untrusted Data
Affected Products
| Product | Versions |
|---|---|
PachnoPachno |
|
References
- Zero Science Lab Disclosurethird-party-advisory
- VulnCheck Advisory: Pachno 1.0.6 FileCache Deserialization Remote Code Executionthird-party-advisory
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