{"id":"CVE-2026-34148","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-34148","generatedAt":"2026-10-28T02:18:53.642Z","title":"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.","description":"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.","published":"2026-04-06T16:16:34.000Z","lastModified":"2026-10-26T22:10:00.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400","CWE-770"],"affected":["fedify/fedify\\/fedify","fedify/fedify\\/vocab-runtime"],"epss":{"score":0.00551,"percentile":0.45808,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/fedify-dev/fedify/releases/tag/1.10.5","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/fedify-dev/fedify/releases/tag/1.9.6","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/fedify-dev/fedify/releases/tag/2.0.8","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/fedify-dev/fedify/releases/tag/2.1.1","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp","tags":["Exploit","Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-34148","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}