CVE-2026-62857 | BDVDB-2026-355994 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12026-08-06Record published in the CVE List.
2. Version 22026-08-08Most recent update recorded in the CVE List.