CVE-2025-27157
Mastodon's rate-limits are missing on `/auth/setup`
Summary
Mastodon's rate-limits are missing on /auth/setup
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Affected packages
Bitnami
mastodon
[{"type":"SEMVER","events":[{"introduced":"4.2.0"},{"fixed":"4.3.4"}]}]
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- patch github.com