CVE-2026-77521 | BDVDB-2026-377406 Detail

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-09-21Record published in the CVE List.
2. Version 22026-09-22Most recent update recorded in the CVE List.