CyberSecBulletin

deepstreamIO vulnerabilities

We track 2 vulnerabilities in deepstreamIO products. 2 are rated high or critical, and none are known to be exploited. The most recent was published on September 21, 2026.

2vulnerabilities
1critical
1high
0exploited
9.4average CVSS score

Latest deepstreamIO vulnerabilities

  • 8.8 High severity

    deepstream.io: Missing Authorization

    CVE-2026-63116deepstreamIO

    deepstream is a server that allows clients and backend services to sync data, send messages and make rpcs at scale. From 10.1.0 until 10.1.1, src/services/permission/valve/rules-map.ts omits RECORD_ACTION.PATCH_MULTI from RULES_MAP. When an authenticated user

  • 9.9 Critical severity

    deepstream.io: Improperly Controlled Modification of Object Prototype Attributes

    CVE-2026-49252deepstreamIO

    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 u