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 there is uncontrolled recursion of attacker-generated messages.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (61.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- borg.social/notes/98bcoo2t1n (Third Party Advisory, Issue Tracking)
- hackmd.io/rD9nsTz1QeuPT-erxqjY-A (Exploit, Third Party Advisory, Issue Tracking)
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.