Vulnerability in Joinmastodon Mastodon
CVE-2024-34535
In Mastodon 4.1.6, API endpoint rate limiting can be bypassed by setting a crafted HTTP request header.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/mastodon/mastodon/tags (Release Notes)
- github.com/mastodon/mastodon/security/advisories/GHSA-q3rg-xx5v-4mxh (Third Party Advisory)
Frequently asked questions
- What is CVE-2024-34535?
- CVE-2024-34535 is a medium-severity vulnerability in Joinmastodon Mastodon, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 5.9/10. Published 2024-10-03.
- How severe is CVE-2024-34535?
- Medium severity. CVSS v3 base score is 5.9 out of 10.