CVE-2025-54888

N/A

Descripcion

Fedify is a TypeScript library for building federated server apps powered by ActivityPub. In versions below 1.3.20, 1.4.0-dev.585 through 1.4.12, 1.5.0-dev.636 through 1.5.4, 1.6.0-dev.754 through 1.6.7, 1.7.0-pr.251.885 through 1.7.8 and 1.8.0-dev.909 through 1.8.4, an authentication bypass vulnerability allows any unauthenticated attacker to impersonate any ActivityPub actor by sending forged activities signed with their own keys. Activities are processed before verifying the signing key belongs to the claimed actor, enabling complete actor impersonation across all Fedify instances. This is fixed in versions 1.3.20, 1.4.13, 1.5.5, 1.6.8, 1.7.9 and 1.8.5.

Detalles CVE

Puntuacion CVSS v3.1N/A

Publicado8/9/2025

Ultima modificacion2/4/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-287CWE-863

Referencias

https://github.com/fedify-dev/fedify/commit/14a2f8c6d2c3cbc00c3170a86ad3b7b8555c6847(security-advisories@github.com)

https://github.com/fedify-dev/fedify/security/advisories/GHSA-6jcc-xgcr-q3h4(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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