Resource exhaustion in Discourse
CVE-2023-22740
Discourse is an open source platform for community discussion. Versions prior to 3.1.0.beta1 (beta) (tests-passed) are vulnerable to Allocation of Resources Without Limits. Users can create chat drafts of an unlimited length, which can cause a denial of service by generating an excessive load on the server. Additionally, an unlimited number of drafts were loaded when loading the user. This issue has been patched in version 2.1.0.beta1 (beta) and (tests-passed). Users should upgrade to the latest version where a limit has been introduced. There are no workarounds available.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (50.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Discourse — versions beta < 3.1.0.beta1; tests-passed < 3.1.0.beta1
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-pwj4-rf62-p224 (Third Party Advisory)
- github.com/discourse/discourse/commit/5eaf0802398ff06604f03b27a28dd274f2ffa576 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-22740?
- CVE-2023-22740 is a medium-severity vulnerability in Discourse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2023-01-27.
- How severe is CVE-2023-22740?
- Medium severity. CVSS v3 base score is 4.3 out of 10.