CVE-2026-49252

Published: Jun 18, 2026Modified: Jun 23, 2026Deferred

9.9

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Exploitability: 3.1 / Impact: 6.0

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

References (2)

https://github.com/deepstreamIO/deepstream.io/commit/54b8e2958a98df444b5b5d9a66e22872afd84e44

Source: security-advisories@github.com

https://github.com/deepstreamIO/deepstream.io/security/advisories/GHSA-9v98-6g37-x9g6

Source: security-advisories@github.com

Timeline

No history available yet.