CVE-2022-23641

Denial of Service in Discourse

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.55%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: discourse discourse
Published at:
Updated at:

References

Link Tags
https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxv third party advisory issue tracking
https://github.com/discourse/discourse/pull/15927 third party advisory patch
https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565e third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-23641?
CVE-2022-23641 has been scored as a medium severity vulnerability.
How to fix CVE-2022-23641?
To fix CVE-2022-23641, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-23641 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-23641 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-23641?
CVE-2022-23641 affects discourse discourse.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.