{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "88d8c0480db31ed4daa0e463aaace1c6d90c45c6"
            }
          ],
          "repo": "https://github.com/jm33-m0/emp3r0r",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f5p9-j34q-pwcc"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-362",
      "CWE-663"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26201.json"
  },
  "details": "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.",
  "id": "CVE-2026-26201",
  "modified": "2026-04-01T23:08:22.066229502Z",
  "published": "2026-02-19T19:21:05.691Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26201.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-f5p9-j34q-pwcc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26201"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jm33-m0/emp3r0r/commit/ea4d074f081dac6293f3aec38f01def5f08d5af5"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "emp3r0r Affected by Concurrent Map Access DoS (panic/crash)"
}