Vulnerability in Joinmastodon Mastodon

CVE-2022-46405

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 t…

EPSS: 0.009 (56.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-46405?
CVE-2022-46405 is a high-severity vulnerability in Joinmastodon Mastodon, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2022-12-04.
How severe is CVE-2022-46405?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-46405 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.