CVE-2022-31182 Cache poisoning via maliciously-formed request in Discourse

What is CVE-2022-31182?

CVE-2022-31182 is a medium-severity vulnerability in Discourse Discourse, published on 1 Aug 2022.

Official description

Discourse is the an open source discussion platform. In affected versions a maliciously crafted request for static assets could cause error responses to be cached by Discourse's default NGINX proxy configuration. A corrected NGINX configuration is included in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-404

Which versions are affected by CVE-2022-31182?

1 open source package ship an affected version, including discourse. It affects 1 product.

Products include Discourse Discourse.

How do I fix CVE-2022-31182?

Upgrade discourse to 2.8.7 or later.

Is CVE-2022-31182 being exploited?

There is no known exploitation of CVE-2022-31182 in the wild and no public exploit code.

Other vulnerabilities in Discourse Discourse

• CVE-2021-41163 RCE via malicious SNS subscription payload Critical 10.0
• CVE-2022-36066 Discourse vulnerable to RCE via admins uploading maliciously zipped file Critical 9.1
• CVE-2022-39356 Discourse user account takeover via email and invite link High 8.9
• CVE-2023-22468 Discourse vulnerable to Cross-site Scripting in local oneboxes High 8.8
• CVE-2026-27934 Discourse leaks private topic title and post excerpt via user action API endpoint High 8.7

All Discourse Discourse vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-discourse-2022-31182, GHSA-4ff8-3j78-w6pp.