CVE-2022-23548
First published: Thu Jan 05 2023(Updated: )
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Discourse Discourse | <2.8.14 | |
| Discourse Discourse | =2.9.0-beta1 | |
| Discourse Discourse | =2.9.0-beta10 | |
| Discourse Discourse | =2.9.0-beta11 | |
| Discourse Discourse | =2.9.0-beta12 | |
| Discourse Discourse | =2.9.0-beta13 | |
| Discourse Discourse | =2.9.0-beta14 | |
| Discourse Discourse | =2.9.0-beta2 | |
| Discourse Discourse | =2.9.0-beta3 | |
| Discourse Discourse | =2.9.0-beta4 | |
| Discourse Discourse | =2.9.0-beta5 | |
| Discourse Discourse | =2.9.0-beta6 | |
| Discourse Discourse | =2.9.0-beta7 | |
| Discourse Discourse | =2.9.0-beta8 | |
| Discourse Discourse | =3.0.0-beta15 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-23548?
CVE-2022-23548 is a vulnerability in the Discourse discussion platform that can be exploited by regular expression denial of service (ReDoS) attacks.
How severe is CVE-2022-23548?
CVE-2022-23548 has a severity rating of 6.5, which is considered medium.
Which versions of Discourse are affected by CVE-2022-23548?
Versions up to 2.8.14 on the 'stable' branch and versions 2.9.0.beta16 on the 'beta' and 'tests-passed' branches of Discourse are affected.
How can I fix CVE-2022-23548?
You can fix CVE-2022-23548 by updating your Discourse installation to version 2.8.14 for the 'stable' branch and version 2.9.0.beta16 for the 'beta' and 'tests-passed' branches.
Where can I find more information about CVE-2022-23548?
You can find more information about CVE-2022-23548 in the following references: [GitHub Pull Request](https://github.com/discourse/discourse/pull/19737) and [GitHub Security Advisory](https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf).
- collector/nvd-index
- agent/weakness
- agent/references
- agent/severity
- agent/author
- agent/type
- agent/event
- agent/description
- agent/remedy
- agent/last-modified-date
- agent/first-publish-date
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/discourse
- canonical/discourse discourse
- version/discourse discourse/2.9.0-beta1
- version/discourse discourse/2.9.0-beta10
- version/discourse discourse/2.9.0-beta11
- version/discourse discourse/2.9.0-beta12
- version/discourse discourse/2.9.0-beta13
- version/discourse discourse/2.9.0-beta14
- version/discourse discourse/2.9.0-beta2
- version/discourse discourse/2.9.0-beta3
- version/discourse discourse/2.9.0-beta4
- version/discourse discourse/2.9.0-beta5
- version/discourse discourse/2.9.0-beta6
- version/discourse discourse/2.9.0-beta7
- version/discourse discourse/2.9.0-beta8
- version/discourse discourse/3.0.0-beta15