{"id":"CVE-2026-34148","summary":"Fedify affected by resource exhaustion caused by unbounded redirect following during remote key/document resolution","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.","aliases":["GHSA-gm9m-gwc4-hwgp"],"modified":"2026-07-08T08:12:26.591663337Z","published":"2026-04-06T15:06:53.197Z","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"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/fedify-dev/fedify","events":[{"introduced":"0"},{"fixed":"06f2599a8c2ff25e5b2866f621ca83fc3f666bef"},{"fixed":"52ad697cf62f24366b0fcb42fc9d1d5fba5039a0"},{"introduced":"e4277717b0cad40c6282aae3dd14d4016cda45af"},{"fixed":"bb78342e9aa634da59558f6bfe0f028c0525dc41"},{"introduced":"9568bcde77d3f1df90e2a790f5ff81b5bc787c5d"},{"fixed":"52ad697cf62f24366b0fcb42fc9d1d5fba5039a0"},{"introduced":"49bfb3679ceaf3c20e4029033d19aed6f5cd9d0c"},{"fixed":"1c7dab5649672a0db380711f3161469e660389f2"}],"database_specific":{"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"}],"cpe":["cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*","cpe:2.3:a:fedify:fedify\\/vocab-runtime:*:*:*:*:*:node.js:*:*"],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["2.1.0","2.0.7","2.0.6","2.0.5","1.10.4","2.0.4","2.0.3","2.0.2","2.0.1","2.0.0","1.10.3","1.9.5","1.10.2","1.9.4","1.10.1","1.9.3","1.10.0","1.9.2","1.9.1","1.9.0","1.8.1","1.7.0","1.6.1","1.5.0","1.4.0","1.3.0","1.2.0","1.1.0","1.0.0","0.15.0","0.14.0","0.13.0","0.12.0","0.11.0","0.10.0","0.9.0","0.8.0","0.7.0","0.6.0","0.5.0","0.4.0","0.3.0","0.2.0","0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34148.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}