Security Advisory

CVE-2025-27157

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-02-27 17:12:39

Last updated 2025-02-27 18:10:00

Assigner GitHub_M

State PUBLISHED

Description

Mastodon is a self-hosted, federated microblogging platform. Starting in version 4.2.0 and prior to versions 4.2.16 and 4.3.4, the rate limits are missing on `/auth/setup`. Without those rate limits, an attacker can craft requests that will send an email to an arbitrary addresses. Versions 4.2.16 and 4.3.4 fix the issue.

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