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.

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

EPSS: 0.004 (30.2th percentile) — read the EPSS interpretation.

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.

Affected products

Joinmastodon Mastodon
N/a — versions n/a

Weakness classification (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling)

References

cve@mitre.org (Release Notes)
cve@mitre.org (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.