Cloudanix VulnDB

CVE-2026-34148

High · 7.5

CVSS

7.5

EPSS

0.7%

Published

Apr 6, 2026

CISA due date

—

The record

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.

Affected packages

Ecosystem Package Introduced Fixed
npm @fedify/fedify 0 1.9.6
npm @fedify/fedify 1.10.0 1.10.5
npm @fedify/fedify 2.0.0 2.0.8
npm @fedify/fedify 2.1.0 2.1.1
npm @fedify/vocab-runtime 0 2.0.8
npm @fedify/vocab-runtime 2.1.0 2.1.1

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