CVE-2022-23641

Name: CVE-2022-23641
Creator: NVD / NIST
Published: 2022-02-15T21:15:07.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.14%

Last modified Jun 17, 2026

CVE-2022-23641 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 1.14% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.14%

62.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Discourse	Discourse	< 2.8.1

References

https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565ePatch, Third Party Advisory
https://github.com/discourse/discourse/pull/15927Patch, Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxvIssue Tracking, Third Party Advisory
https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565ePatch, Third Party Advisory
https://github.com/discourse/discourse/pull/15927Patch, Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxvIssue Tracking, Third Party Advisory

Timeline

Published: Feb 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-23641?

How severe is CVE-2022-23641?

CVE-2022-23641 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.

How do I fix CVE-2022-23641?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-23641?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST