Prototype Pollution

Overview @deepstream/server is an a scalable server for realtime webapps Affected versions of this package are vulnerable to Prototype Pollution via the message processing pipeline. An attacker can escalate privileges and potentially gain unauthorized access or modify sensitive data by sending...

GHSA-9V98-6G37-X9G6 deepstream is vulnerable to prototype pollution

Impact Prototype pollution in deepstream server v =10.0.4. Potential privilege escalation from any authenticated user with write permission to any record. Patches Yes, upgrade to v10.0.5 Workarounds Filter out all messages containing the path proto, constructor, prototype, before they reach the...

CVE-2026-49252 deepstream is vulnerable to prototype pollution

deepstream is a server that allows clients and backend services to sync data, send messages and make rpcs at scale. Versions prior to 10.0.5 are vulnerable to Prototype Pollution. Exploitation can lead to potential privilege escalation from any authenticated user with write permission to any...

PT-2026-50790

Name of the Vulnerable Software and Affected Versions deepstream versions prior to 10.0.5 Description A Prototype Pollution issue exists in the server, which allows clients and backend services to synchronize data, send messages, and make remote procedure calls RPCs at scale. Prototype Pollution...