Resource exhaustion in Discourse

CVE-2024-43789

Discourse is an open source platform for community discussion. A user can create a post with many replies, and then attempt to fetch them all at once. This can potentially reduce the availability of a Discourse instance. This problem has been patched in the latest version of Discourse. All users area are advised to upgrade. There are no known workarounds for this vulnerability.

Vulnerability class: DoS (Denial of Service)

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: 0.005 (37.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-43789: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Discourse — versions stable: < 3.3.1, beta: < 3.4.0.beta1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-43789?
CVE-2024-43789 is a high-severity vulnerability in Discourse, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2024-10-07.
How severe is CVE-2024-43789?
High severity. CVSS v3 base score is 7.5 out of 10.