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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/ginlix-ai/LangAlpha/blob/435a5a44fabdeb33e409a62d233a936d962…
disclosure@vulncheck.com
https://www.lasso.security/vulnerability-database/cve-2026-109441
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/langalpha-through-2026.09.07-cross-tenant-…
disclosure@vulncheck.com