CVE-2022-46405

HIGH

Mastodon < 4.0.2 - Denial of Service via Uncontrolled Recursion of Bot Account Messages

Title source: llm
STIX 2.1

Description

Mastodon through 4.0.2 allows attackers to cause a denial of service (large Sidekiq pull queue) by creating bot accounts that follow attacker-controlled accounts on certain other servers associated with a wildcard DNS A record, such that there is uncontrolled recursion of attacker-generated messages.

References (2)

Core 2
Core References
Issue Tracking, Third Party Advisory
https://borg.social/notes/98bcoo2t1n
Exploit, Issue Tracking, Third Party Advisory
https://hackmd.io/rD9nsTz1QeuPT-erxqjY-A

Scores

CVSS v3 7.5
EPSS 0.0092
EPSS Percentile 55.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-674
Status published
Products (1)
joinmastodon/mastodon < 4.0.2
Published Dec 04, 2022
Tracked Since Feb 18, 2026