What is CVE-2026-54149?

CVE-2026-54149 is a high-severity vulnerability in 1panel-Dev Maxkb, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-10.

How severe is CVE-2026-54149?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in 1panel-Dev Maxkb

CVE-2026-54149

MaxKB is an open-source AI assistant for enterprise. Prior to 2.10.0-lts, MaxKB tool import functionality in apps/tools/serializers/tool.py and MCP referencing mode in apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py do not consistently validate MCP transport type, allowing an authenticated user to import a .tool file containing stdio transport with malicious commands and trigger the configuration through an AI Chat node so MultiServerMCPClient executes arbitrary system commands. This issue is fixed in version 2.10.0-lts.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.005 (43.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

1panel-dev Maxkb — versions < 2.10.0-lts

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-54149?: CVE-2026-54149 is a high-severity vulnerability in 1panel-Dev Maxkb, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-07-10.
How severe is CVE-2026-54149?: High severity. CVSS v3 base score is 8.8 out of 10.