CVE-2025-53927: 1Panel-dev MaxKB · Code Injection
Affects 1Panel-dev MaxKBSource CVE Database V5
Not known to be exploited · CVSS 4.6 Medium : upgrade to 2.0.0 when convenient.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.0.0
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 17 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade 1Panel-dev MaxKB to 2.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
PyPImaxkbpkg:pypi/maxkbOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
European organizations using MaxKB should immediately upgrade to version 2.0.0 or later, where the sandbox bypass vulnerability is fixed. Until upgrading, organizations should implement strict access controls to limit user permissions on systems running MaxKB, preventing unauthorized file copying or execution. Network segmentation should isolate AI assistant environments from critical infrastructure to contain potential breaches. Monitoring for unusual file operations involving shutil.copy2 or unexpected executable file creation in restricted directories can help detect exploitation attempts. Additionally, user training to recognize social engineering attempts that could trigger user interaction-based exploits is essential. Employing application whitelisting and endpoint detection and response (EDR) tools can further reduce risk by blocking unauthorized code execution and alerting on suspicious activities related to MaxKB.
Description
MaxKB is an open-source AI assistant for enterprise. Prior to version 2.0.0, the sandbox design rules can be bypassed because MaxKB only restricts the execution permissions of files in a specific directory. Therefore, an attacker can use the `shutil.copy2` method in Python to copy the command they want to execute to the executable directory. This bypasses directory restrictions and reverse shell. Version 2.0.0 fixes the issue.