{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*",
              "cpe:2.3:a:fedify:fedify\\/vocab-runtime:*:*:*:*:*:node.js:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.9.6"
              },
              {
                "fixed": "2.0.8"
              },
              {
                "introduced": "1.10.0"
              },
              {
                "fixed": "1.10.5"
              },
              {
                "introduced": "2.0.0"
              },
              {
                "introduced": "2.1.0"
              },
              {
                "fixed": "2.1.1"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "06f2599a8c2ff25e5b2866f621ca83fc3f666bef"
            },
            {
              "fixed": "52ad697cf62f24366b0fcb42fc9d1d5fba5039a0"
            },
            {
              "introduced": "e4277717b0cad40c6282aae3dd14d4016cda45af"
            },
            {
              "fixed": "bb78342e9aa634da59558f6bfe0f028c0525dc41"
            },
            {
              "introduced": "9568bcde77d3f1df90e2a790f5ff81b5bc787c5d"
            },
            {
              "fixed": "52ad697cf62f24366b0fcb42fc9d1d5fba5039a0"
            },
            {
              "introduced": "49bfb3679ceaf3c20e4029033d19aed6f5cd9d0c"
            },
            {
              "fixed": "1c7dab5649672a0db380711f3161469e660389f2"
            }
          ],
          "repo": "https://github.com/fedify-dev/fedify",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-gm9m-gwc4-hwgp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34148.json"
  },
  "details": "Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to 1.9.6, 1.10.5, 2.0.8, and 2.1.1, @fedify/fedify follows HTTP redirects recursively in its remote document loader and authenticated document loader without enforcing a maximum redirect count or visited-URL loop detection. An attacker who controls a remote ActivityPub key or actor URL can force a server using Fedify to make repeated outbound requests from a single inbound request, leading to resource consumption and denial of service. This vulnerability is fixed in 1.9.6, 1.10.5, 2.0.8, and 2.1.1.",
  "id": "CVE-2026-34148",
  "modified": "2026-07-08T05:38:58.787928813Z",
  "published": "2026-04-06T15:06:53.197Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fedify-dev/fedify/releases/tag/1.10.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fedify-dev/fedify/releases/tag/1.9.6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fedify-dev/fedify/releases/tag/2.0.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fedify-dev/fedify/releases/tag/2.1.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34148.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34148"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Fedify affected by resource exhaustion caused by unbounded redirect following during remote key/document resolution"
}