CVE-2026-26201: emp3r0r Affected by Concurrent Map Access DoS (panic/crash)

February 17, 2026 (updated February 19, 2026)

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).

References

github.com/advisories/GHSA-f5p9-j34q-pwcc
github.com/jm33-m0/emp3r0r
github.com/jm33-m0/emp3r0r/commit/ea4d074f081dac6293f3aec38f01def5f08d5af5
github.com/jm33-m0/emp3r0r/releases/tag/v3.21.2
github.com/jm33-m0/emp3r0r/security/advisories/GHSA-f5p9-j34q-pwcc
nvd.nist.gov/vuln/detail/CVE-2026-26201

Code Behaviors & Features

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