CRITICAL

CVE-2026-77521

2026-09-21 CVSS v3.1

CVSS

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.

Weakness (CWE)

CWE-78 OS Command Injection

CWE-250

CWE-749

References

https://github.com/1Panel-dev/MaxKB/commit/594f50f2ea80a502d1c955371ba0438b277c30ea https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.5-lts https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-f36j-f34j-h3rx

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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