{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.10.0"
              },
              {
                "fixed": "4.11.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "8e2c575229de615a3414bd9c81215c3b040471b4"
            },
            {
              "fixed": "741b2983cc52f967dd08c438fd72a5f08f13ca27"
            },
            {
              "fixed": "97fd597fcb64861392b399ac824b044a2f0f5786"
            }
          ],
          "repo": "https://github.com/coturn/coturn",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-908"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104074.json"
  },
  "details": "Coturn 4.10.0 contains an uninitialized memory disclosure vulnerability that allows remote unauthenticated attackers to leak stack memory contents by sending a TURN Allocate request without credentials. Attackers can exploit the stun_init_error_response_common_str() function in src/client/ns_turn_msg.c, which fails to zero-initialize the avalue buffer before computing its length with strlen() and copying leaked stack bytes into the ERROR-CODE reason phrase, exposing pointer fragments that weaken ASLR and enable precise version fingerprinting.",
  "id": "CVE-2026-104074",
  "modified": "2026-10-09T02:30:49.196141783Z",
  "published": "2026-10-07T14:29:45.615Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104074.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/coturn/coturn/releases/tag/4.11.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104074"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/coturn/coturn/pull/1878"
    },
    {
      "type": "FIX",
      "url": "https://github.com/coturn/coturn/commit/741b2983cc52f967dd08c438fd72a5f08f13ca27"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/coturn/coturn"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Coturn 4.10.0 Uninitialized Stack Memory Disclosure via ERROR-CODE"
}