CVE-2026-77521

MaxKB: Prompt-injectable agent can lead to command execution

Published: Sep 21, 2026Updated: Sep 22, 2026 Sources: CVE List NVDCWE-78

10.0CRITICAL

Description

MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.5-lts, assistants with a tool, MCP tool, skill, or sub-application use SandboxShellBackend, which exposes an execute shell tool without excluding it and omits execute from interrupt_on, so human approval is not required. Untrusted chat or ingested content can therefore cause command execution; source deployments with MAXKB_SANDBOX disabled run commands directly as the application user, while the official root container's string-based gosu wrapper allowed shell metacharacters to execute outside the intended sandbox. This issue is fixed in version 2.10.5-lts.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-78 CWE-250 CWE-749

Affected Products

1Panel-dev

oss-project·CNaka 1panel

MaxKBOn-prem

Cloud & SaaS / cloud-platform

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Execution

Privilege Escalation

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References

https://github.com/1Panel-dev/MaxKB/commit/594f50f2ea80a502d1c955371ba0438b277c30ea

github.com

https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.5-lts

github.com

https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-f36j-f34j-h3rx

github.com

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