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CVE-2026-26068

Published: Feb 12, 2026

Modified: Feb 13, 2026

PUBLISHED

Description

emp3r0r is a stealth-focused C2 designed by Linux users for Linux environments. Prior to 3.21.1, untrusted agent metadata (Transport, Hostname) is accepted during check-in and later interpolated into tmux shell command strings executed via /bin/sh -c. This enables command injection and remote code execution on the operator host. This vulnerability is fixed in 3.21.1.

Vendor	Product	Versions
jm33-m0	emp3r0r	affected `< 3.21.1`

Weaknesses (CWE)

References

https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-h5p4-4xp4-vjpp

x_refsource_CONFIRM

https://github.com/jm33-m0/emp3r0r/commit/0cd64e4a26e7839a9a54bca3d756a665fcb7fda0

x_refsource_MISC

https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.1

x_refsource_MISC

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