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 server's message pipeline
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @deepstream/server | < 10.0.5 | 10.0.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L- Weakness (CWE)
CWE-1321- Platform
- npm
- Package
@deepstream/server- Disclosed
- 26.06.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9v98-6g37-x9g6 - CC BY 4.0
Vulnerability history: @deepstream/server
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 06.2026 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
Disclosures per year
- 2026: 2
-
deepstream is vulnerable to prototype pollution this entry
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