Security advisory

{
  "id": "6728c0619df3e0a50aa43ea7cd7f9a50877d70ce88be47f6ea7bc6bbb18be1ce",
  "url": "https://osv.dev/vulnerability/CVE-2019-15149",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-15149",
    "summary": "core.py in Mitogen before 0.2.8 has a typo that drops the unidirectional-routing protection mechanism in the case of a child that is initiated by another child. The Ansible extension is unaffected. NOTE: the vendor disputes this issue because it is exploitable only in conjunction with hypothetical other factors, i.e., an affected use case within a library caller, and a bug in the message receiver policy code that led to reliance on this extra protection mechanism",
    "evidence": "osv:CVE-2019-15149",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-15149",
      "aliases": [
        "CVE-2019-15149",
        "GHSA-8rf6-w2mx-4xjh",
        "PYSEC-2019-104"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mitogen-hq/mitogen",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "706a94bc970639a14225ce4fcc7e9a1089e718e3"
                },
                {
                  "fixed": "5924af1566763e48c42028399ea0cd95c457b3dc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:networkgenomics:mitogen:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.2.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "5924af1566763e48c42028399ea0cd95c457b3dc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15149.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:43.702263578Z",
      "provider": "osv",
      "references": [
        "https://mitogen.networkgenomics.com/changelog.html#v0-2-8-2019-08-18",
        "https://github.com/dw/mitogen/commit/5924af1566763e48c42028399ea0cd95c457b3dc"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-15149",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383762,
  "published_at": "2019-08-18T20:15:09.22+00:00"
}