PT-2026-96263

Name of the Vulnerable Software and Affected Versions MaxKB versions prior to 2.10.6-lts Description The ToolExecutor LD PRELOAD sandbox fails to hook the fexecve function, although it hooks execve, execvpe, and execveat to prevent subprocess creation. An authenticated attacker with the ability t...

PT-2026-96264

Name of the Vulnerable Software and Affected Versions MaxKB versions prior to 2.10.6-lts Description Function-library code running under the LD PRELOAD sandbox can invoke ctypes.CDLL from an importlib.abc.MetaPathFinder callback. This allows the dlopen call-stack heuristic to identify a Python...

CVE-2026-39420

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an incomplete sandbox protection mechanism allows an authenticated user with tool execution privileges to escape the LDPRELOAD-based sandbox. By env command the attacker can clear the environment variables and drop...

CVE-2026-39421 MaxKB: Sandbox escape via ctypes and unhooked SYS_pkey_mprotect

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python's ctypes library to execute raw system calls, an authenticated attacker with workspace privileges can bypass the LDPRELOAD-based...