Description
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.
INFO
Published Date :
2025-08-09T01:31:53.319Z
Last Modified :
2025-08-11T13:48:53.546Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-54888 vulnerability.
| Vendors | Products |
|---|---|
| Fedify Project |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-54888.
