{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.2.0"
              },
              {
                "fixed": "1.9.13"
              },
              {
                "introduced": "1.10.0"
              },
              {
                "fixed": "1.10.12"
              },
              {
                "introduced": "2.0.0"
              },
              {
                "fixed": "2.0.22"
              },
              {
                "introduced": "2.1.0"
              },
              {
                "fixed": "2.1.18"
              },
              {
                "introduced": "2.2.0"
              },
              {
                "fixed": "2.2.7"
              },
              {
                "introduced": "2.3.0"
              },
              {
                "fixed": "2.3.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "2e639046343bb81f47b3f7a571aaec6812f4168e"
            },
            {
              "introduced": "e4277717b0cad40c6282aae3dd14d4016cda45af"
            },
            {
              "introduced": "9568bcde77d3f1df90e2a790f5ff81b5bc787c5d"
            },
            {
              "introduced": "49bfb3679ceaf3c20e4029033d19aed6f5cd9d0c"
            },
            {
              "introduced": "7c1bc8ab6e7f70c54fde4be3372dcd113f3f7947"
            },
            {
              "introduced": "f33d94c8c6e3af7a7df89c69ecc139239148adf7"
            },
            {
              "fixed": "6220cf8090a17051f1ac3217ed172acf8d355d87"
            },
            {
              "fixed": "a9fdf26105b5d3622feac42e9a1af7df875c1776"
            },
            {
              "fixed": "022503240e243219d940947dbb25eb6a1137c183"
            },
            {
              "fixed": "fb5adc324612ede97ca305eebe58743873378e84"
            },
            {
              "fixed": "27a189fb1db771e598cb4b91e8744f92fdbb4986"
            },
            {
              "fixed": "9d67b2259c8aa9293fa112e86b834e558d7fce5b"
            }
          ],
          "repo": "https://github.com/fedify-dev/fedify",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-hqph-j65v-8cq5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62857.json"
  },
  "details": "Fedify is a TypeScript library for building federated server apps powered by ActivityPub. From version 1.2.0 through the affected 1.9, 1.10, 2.0, 2.1, 2.2, and 2.3 maintenance lines, getNodeInfo() follows an attacker-controlled links[].href value from /.well-known/nodeinfo without scheme, redirect, or private-address validation, allowing requests to loopback, link-local, cloud metadata, and private-network services and returning their response bodies. This issue is fixed in versions 1.9.13, 1.10.12, 2.0.22, 2.1.18, 2.2.7, and 2.3.2.",
  "id": "CVE-2026-62857",
  "modified": "2026-08-09T03:30:37.269326677Z",
  "published": "2026-08-06T21:04:23.341Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fedify-dev/fedify/releases/tag/2.3.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62857.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/fedify-dev/fedify/security/advisories/GHSA-hqph-j65v-8cq5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62857"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Fedify: Server-Side Request Forgery in getNodeInfo() Allows Access to Internal Network Resources"
}