CVE-2023-47120
HIGH7.5EPSS 0.30%Discourse DoS through Onebox favicon URL
Published: 3/6/2024Modified: 10/15/2025
Description
Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
Affected packages (1)
- Bitnami/discourse>= 3.1.0, < 3.1.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (4)
- WEBhttps://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852
- WEBhttps://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce
- WEBhttps://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2023-47120