Vulnerability Description
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.
CVSS Score
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Matrix | Synapse | < 0.31.1 |
References
- https://github.com/matrix-org/synapse/pull/3371PatchThird Party Advisory
- https://github.com/matrix-org/synapse/releases/tag/v0.31.1Third Party Advisory
- https://github.com/matrix-org/synapse/pull/3371PatchThird Party Advisory
- https://github.com/matrix-org/synapse/releases/tag/v0.31.1Third Party Advisory
FAQ
What is CVE-2018-12291?
CVE-2018-12291 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 c...
How severe is CVE-2018-12291?
CVE-2018-12291 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12291?
Check the references section above for vendor advisories and patch information. Affected products include: Matrix Synapse.