AutoMapper Vulnerable to Denial of Service (DoS) via Uncontrolled Recursion

{
  "id": "6a6ecabbc4287c520ae2250b3281237a2b6067c0d5656eec56cf55784b387e89",
  "url": "https://osv.dev/vulnerability/CVE-2026-32933",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "AutoMapper Vulnerable to Denial of Service (DoS) via Uncontrolled Recursion",
    "summary": "AutoMapper is a convention-based object-object mapper in .NET. Versions prior to 15.1.1 and 16.1.1 are vulnerable to a Denial of Service (DoS) attack. When mapping deeply nested object graphs, the library uses recursive method calls without enforcing a default maximum depth limit. This allows an attacker to provide a specially crafted object graph that exhausts the thread's stack memory, triggering a `StackOverflowException` and causing the entire application process to terminate. Versions 15.1.1 and 16.1.1 fix the issue.",
    "evidence": "osv:CVE-2026-32933",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-32933",
      "aliases": [
        "CVE-2026-32933",
        "GHSA-rvv3-g6hj-g44x"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/luckypennysoftware/automapper",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1af71bfe831e337254a555a611de6c22b85d0426"
                },
                {
                  "introduced": "8ef7df2bf8835e2ccd54338c2c5226a8c91ec628"
                },
                {
                  "fixed": "7aea8082ca7d5dd317c2a2a455d07e7b36557a9f"
                },
                {
                  "fixed": "0afaf1e91648fca1a57512e94dd00a76ee016816"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:luckypennysoftware:automapper:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "15.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:luckypennysoftware:automapper:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "16.0.0"
                      },
                      {
                        "fixed": "16.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "0afaf1e91648fca1a57512e94dd00a76ee016816"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1af71bfe831e337254a555a611de6c22b85d0426"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v15.1.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "7aea8082ca7d5dd317c2a2a455d07e7b36557a9f"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v16.1.1"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v16.1.0",
            "v16.0.0-beta-1",
            "v16.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32933.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.823651097Z",
      "provider": "osv",
      "references": [
        "https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v15.1.1",
        "https://github.com/LuckyPennySoftware/AutoMapper/releases/tag/v16.1.1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32933.json",
        "https://github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-rvv3-g6hj-g44x",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-32933",
        "https://github.com/LuckyPennySoftware/AutoMapper/commit/0afaf1e91648fca1a57512e94dd00a76ee016816"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-674"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32933.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-32933",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497535,
  "published_at": "2026-03-20T02:38:41.105+00:00"
}