Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| @fedify / fedify | affected < 1.9.6; affected >= 1.10.0, < 1.10.5; affected >= 2.0.0, < 2.0.8; affected >= 2.1.0, < 2.1.1 |
| @fedify / vocab-runtime | affected < 2.0.8; affected >= 2.1.0, < 2.1.1 |
CWE
CWE-400, CWE-770
References
- https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp
- https://github.com/fedify-dev/fedify/releases/tag/1.10.5
- https://github.com/fedify-dev/fedify/releases/tag/1.9.6
- https://github.com/fedify-dev/fedify/releases/tag/2.0.8
- https://github.com/fedify-dev/fedify/releases/tag/2.1.1
ADP enrichment
No English description supplied.