CVE-2022-23641
Discourse is an open source discussion platform. In versions prior to 2.8.1 in the `stable` branch, 2.9.0.beta2 in the `beta` branch, and 2.9.0.beta2 in the `tests-passed` branch, users can trigger a Denial of Service attack by posting a streaming URL. Parsing Oneboxes in the background job trigger an infinite loop, which cause memory leaks. This issue is patched in version 2.8.1 of the `stable` branch, 2.9.0.beta2 of the `beta` branch, and 2.9.0.beta2 of the `tests-passed` branch. As a workaround, disable onebox in admin panel completely or specify allow list of domains that will be oneboxed.
- Score
- CVSS 3.1 6.5 Medium
- Status
- Modified - security-advisories@github.com
- Published
- 2022-02-15
- Last modified
- 2025-04-23
- Weaknesses
- CWE-835
Affected products
References
- https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565e
- https://github.com/discourse/discourse/pull/15927
- https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxv
