CVE-2026-62857
Fedify: Server-Side Request Forgery in getNodeInfo() Allows Access to Internal Network Resources
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | fedify-dev |
| Product | fedify |
| Published | Aug 6, 2026 |
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Affected Versions
fedify-dev / fedify
>= 1.2.0, < 1.9.13 >= 1.10.0, < 1.10.12 >= 2.0.0, < 2.0.22 >= 2.1.0, < 2.1.18 >= 2.2.0, < 2.2.7 >= 2.3.0, < 2.3.2