CVE-2022-39226

Name: CVE-2022-39226
Creator: NVD / NIST
Published: 2022-09-29T20:15:13.76+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.78%

Last modified Jun 17, 2026

CVE-2022-39226 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.78%

51.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Discourse	Discourse	< 2.8.9	—
Discourse	Discourse	2.9.0	Beta1

References

https://github.com/discourse/discourse/commit/e69f7d2fd9c977dedbdb17f6813651e2a45bfb71Patch, Third Party Advisory
https://github.com/discourse/discourse/pull/18302Patch, Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-jw3q-xg5g-qjrwThird Party Advisory
https://github.com/discourse/discourse/commit/e69f7d2fd9c977dedbdb17f6813651e2a45bfb71Patch, Third Party Advisory
https://github.com/discourse/discourse/pull/18302Patch, Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-jw3q-xg5g-qjrwThird Party Advisory

Timeline

Published: Sep 29, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39226?

How severe is CVE-2022-39226?

CVE-2022-39226 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39226?

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-2022-39226?

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

Scan your code now

Source: NVD / NIST