CVE-2026-26201
High · 7.5CVSS
7.5
EPSS
0.5%
Published
Feb 19, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/jm33-m0/emp3r0r/core | 0 | 0.0.0-20260212232424-ea4d074f081d |
| openSUSE:Leap 15.6 | govulncheck-vulndb | 0 | 0.0.20260226T182644-150000.1.149.1 |
Related vulnerabilities
- GO-2026-4504 emp3r0r Affected by Concurrent Map Access DoS (panic/crash) in… Same vulnerability
- CVE-2026-33990 Docker Model Runner (DMR) is software used to manage, run, and deploy AI models using… Also affects govulncheck-vulndb
- CVE-2026-34204 MinIO is a high-performance object storage system. Also affects govulncheck-vulndb
- CVE-2026-34041 act is a project which allows for local running of github actions. Also affects govulncheck-vulndb
- CVE-2026-34042 act is a project which allows for local running of github actions. Also affects govulncheck-vulndb
- CVE-2026-34040 Moby is an open source container framework. Also affects govulncheck-vulndb
- CVE-2026-33997 Moby is an open source container framework. Also affects govulncheck-vulndb
- CVE-2026-27018 Gotenberg is an API for converting document formats. Also affects govulncheck-vulndb