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CVE-2026-26201

Published: Feb 19, 2026

Modified: Feb 19, 2026

PUBLISHED

Description

emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 3.21.2, multiple shared maps are accessed without consistent synchronization across goroutines. Under concurrent activity, Go runtime can trigger `fatal error: concurrent map read and map write`, causing C2 process crash (availability loss). Version 3.21.2 fixes this issue.

Vendor	Product	Versions
jm33-m0	emp3r0r	affected `< 3.21.2`

Weaknesses (CWE)

References

https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-f5p9-j34q-pwcc

x_refsource_CONFIRM

https://github.com/jm33-m0/emp3r0r/commit/ea4d074f081dac6293f3aec38f01def5f08d5af5

x_refsource_MISC

https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.2

x_refsource_MISC

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