VDB
DEBIAN-CVE-2018-12291
DEBIAN-CVE-2018-12291
REJECTED
CVSS 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 correctly.
Risk Scores
CVSS v3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | matrix-synapse | 0, 0.19.2+dfsg, 0.19.2+dfsg |
Timeline
- Apr 19, 2026 CVE Rejected