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10.0 Critical

CVE-2026-77521 MaxKB is an open-source AI assistant for enterprise

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.

Affected products and versions

Product Affected versions Fixed in
MaxKB 2.10 earliest → < 2.10.5-lts 2.10.5-lts
The 47 CVEs of MaxKB →
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