CVE-2026-109441

Description

LangAlpha through 2026.09.07 contains an improper isolation vulnerability that places all tenants' sandbox containers on Docker's shared default bridge network with inter-container communication enabled. Authenticated users with code execution in their own sandbox can connect directly to other tenants' containers, bypassing require_workspace_owner checks to read files such as vault secrets from exposed servers.

References

• https://github.com/ginlix-ai/LangAlpha/blob/435a5a44fabdeb33e409a62d233a936d96241c86/src/ptc_agent/config/core.py#L295
• https://www.lasso.security/vulnerability-database/cve-2026-109441
• https://www.vulncheck.com/advisories/langalpha-through-2026.09.07-cross-tenant-sandbox-exposure-via-shared-docker-bridge