Resource exhaustion in Discourse
CVE-2022-39226
Discourse is an open source discussion platform. In versions prior to 2.8.9 on the `stable` branch and prior to 2.9.0.beta10 on the `beta` and `tests-passed` branches, a malicious actor can add large payloads of text into the Location and Website fields of a user profile, which causes issues for other users when loading that profile. A fix to limit the length of user input for these fields is included in version 2.8.9 on the `stable` branch and version 2.9.0.beta10 on the `beta` and `tests-passed` branches. There are no known workarounds.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.008 (53.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Discourse — versions >= 2.9.0.beta0, < 2.9.0.beta10, 2.9.0, < 2.8.9
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-39226?
- CVE-2022-39226 is a medium-severity vulnerability in Discourse, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2022-09-29.
- How severe is CVE-2022-39226?
- Medium severity. CVSS v3 base score is 4.3 out of 10.