Resource exhaustion in Discourse
CVE-2023-44388
Discourse is an open source platform for community discussion. A malicious request can cause production log files to quickly fill up and thus result in the server running out of disk space. This problem has been patched in the 3.1.1 stable and 3.2.0.beta2 versions of Discourse. It is possible to temporarily work around this problem by reducing the `client_max_body_size nginx directive`. `client_max_body_size` will limit the size of uploads that can be uploaded directly to the server.
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 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Discourse — versions beta <= 3.2.0.beta2, stable <= 3.1.1, 3.2.0
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-89h3-g746-xmwq (Vendor Advisory)
- nginx.org/en/docs/http/ngx_http_core_module.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-44388?
- CVE-2023-44388 is a high-severity vulnerability in Discourse, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-10-16.
- How severe is CVE-2023-44388?
- High severity. CVSS v3 base score is 7.5 out of 10.