En resumen
- CVE-2026-49252 es una vulnerabilidad CRÍTICO (CVSS 9.9) que afecta a @deepstream/server.
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.47%, mayor que el 40.7% de las vulnerabilidades.
- Solución: actualizar a 10.0.5 o posterior.
Description
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 server's message pipeline
NVD description
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 record. This issue has been fixed in version 10.0.5.
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