Infinite loop in Discourse - CVE-2022-23641
Published: February 15, 2022 / Updated: July 1, 2026
Vulnerability identifier: #VU136064
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-23641
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Civilized Discourse Construction Kit, Inc.
Affected software:
Discourse
Discourse
Detailed vulnerability description
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to an infinite loop in the Onebox background job when parsing posted streaming URLs. A remote user can post a streaming URL to cause a denial of service.
The issue can lead to memory leaks during background parsing.
How to mitigate CVE-2022-23641
Install security update from vendor's website.