Resource exhaustion in Discourse
CVE-2023-41043
Discourse is an open-source discussion platform. Prior to version 3.1.1 of the `stable` branch and version 3.2.0.beta1 of the `beta` and `tests-passed` branches, a malicious admin could create extremely large icons sprites, which would then be cached in each server process. This may cause server processes to be killed and lead to downtime. The issue is patched in version 3.1.1 of the `stable` branch and version 3.2.0.beta1 of the `beta` and `tests-passed` branches. This is only a concern for multisite installations. No action is required when the admins are trusted.
EPSS: 0.005 (40.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Discourse — versions 2.4.0, 3.1.0, tests-passed < 3.2.0.beta1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-41043?
- CVE-2023-41043 is a medium-severity vulnerability in Discourse, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2023-09-15.
- How severe is CVE-2023-41043?
- Medium severity. CVSS v3 base score is 6.5 out of 10.