CVE-2018-12291
First published: Wed Jun 13 2018(Updated: )
The `on_get_missing_events` function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Matrix Synapse | <0.31.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2018-12291?
CVE-2018-12291 is a security bug in the get_missing_events federation API in Matrix Synapse before 0.31.1.
What is the severity of CVE-2018-12291?
CVE-2018-12291 has a severity rating of 7.5 (high).
How does CVE-2018-12291 affect Matrix Synapse?
CVE-2018-12291 affects Matrix Synapse versions up to exclusive 0.31.1.
How do I fix CVE-2018-12291?
To fix CVE-2018-12291, update Matrix Synapse to version 0.31.1 or later.
Where can I find more information about CVE-2018-12291?
You can find more information about CVE-2018-12291 at the following references: [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-12291), [GitHub Pull Request](https://github.com/matrix-org/synapse/pull/3371), [GitHub Release](https://github.com/matrix-org/synapse/releases/tag/v0.31.1).
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