CVE-2026-77521
criticalMaxKB is an open-source AI assistant for enterprise.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/1Panel-dev/MaxKB/commit/594f50f2ea80a502d1c955371ba0438b277c30ea security-advisories@github.com
- https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.5-lts security-advisories@github.com
- https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-f36j-f34j-h3rx security-advisories@github.com
- https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-f36j-f34j-h3rx 134c704f-9b21-4f2e-91b3-4a467353bcc0