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TI-2026-39063 Aliases CVE-2026-54149

MaxKB MCP tool import validation bypass allows post-authentication remote code execution

Priority HIGH 73CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00486 42nd percentileScored 2026-11-07
Fix Fixed MaxKB (1Panel-dev): 2.10.0-lts

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
1Panel-devMaxKBbefore 2.10.0-lts2.10.0-ltsPatch availableCNA
  • MaxKB Vendor1Panel-dev Affected before 2.10.0-lts Fixed in 2.10.0-lts Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:maxkb:maxkb:*:*:*:*:*:*:*:*——Maxkb
  • cpe:2.3:a:maxkb:maxkb:*:*:*:*:*:*:*:* Versions — — ·Maxkb

Remediation

  • Fix · CNA MaxKB (1Panel-dev) Fixed in 2.10.0-lts

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54149

References

Other 2

  • TI-2023-08712 KubePi's Hardcoded Jwtsigkeys allows malicious actor to login with a forged JWT token CVSS 3.1CRITICAL 9.8
  • TI-2023-08729 KubeOperator is vulnerable to unauthorized access to system API CVSS 3.1CRITICAL 9.8
  • TI-2026-54047 MaxKB: Prompt-injectable agent can lead to command execution CVSS 3.1CRITICAL 10.0
  • TI-2025-43180 CordysCRM 1.4.1 is vulnerable to SQL Injection in the employee list query interface… CVSS 3.1CRITICAL 9.8
  • TI-2024-27040 Arbitrary File Read in Ansible Playbooks in Jumpserver CVSS 3.1CRITICAL 10.0
  • TI-2024-26801 a sqlinjection in 1Panel CVSS 3.1CRITICAL 9.8
See all 145 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences