Resource exhaustion in Discourse - CVE-2023-41042
Published: September 13, 2023 / Updated: July 1, 2026
Vulnerability identifier: #VU136088
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-41042
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in remote theme asset importing when loading remote theme assets into memory. A remote privileged user can import a remote theme with excessive asset size or file count to cause a denial of service.
Affected software
Discourse
How to mitigate CVE-2023-41042
Install security update from vendor's website.
Discourse - addressed in versions 3.1.1, 3.2.0 beta1