CVE-2026-61554: CWE-400: Uncontrolled Resource Consumption in jm33-m0 emp3r0r
emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 4.2.5, the `http_poll` C2 transport accepts attacker-controlled HTTP polling sessions before CBOR `MsgAuth` authentication is completed. A remote unauthenticated attacker can create arbitrary polling sessions and send request bodies that are forwarded into the C2 dispatch path. This can consume server resources and trigger pre-auth C2 processing. Version 4.2.5 patches the issue.
CVE-2026-61554: CWE-400: Uncontrolled Resource Consumption in jm33-m0 emp3r0r
Description
emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 4.2.5, the `http_poll` C2 transport accepts attacker-controlled HTTP polling sessions before CBOR `MsgAuth` authentication is completed. A remote unauthenticated attacker can create arbitrary polling sessions and send request bodies that are forwarded into the C2 dispatch path. This can consume server resources and trigger pre-auth C2 processing. Version 4.2.5 patches the issue.
CVSS v3.1
Score 7.5high
Affected software
jm33-m0
emp3r0r
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-10T16:48:39.923Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa9b25a55bf5e2cf55e955d
Added to database: 09/15/2026, 21:02:18 UTC
Last updated: 09/15/2026, 21:02:18 UTC
Views: 1
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