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Medium severity5.3NVD Advisory· Published Feb 27, 2025· Updated Jun 17, 2026

CVE-2025-27157

CVE-2025-27157

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • Mastodon/Mastodon3 versions
    cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*range: >=4.2.0,<4.2.16
    • (no CPE)range: >=4.2.0, <4.2.16, and <4.3.4
    • (no CPE)range: >= 4.2.0, < 4.2.16
  • osv-coords
    pkg:bitnami/mastodon
    Range: >= 4.2.0, < 4.3.4

Patches

Vulnerability mechanics

References

2

News mentions

0

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