Back to Database
Status published
High
CVE-2018-12291
The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1...
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2018-12291
Credits & Attribution
No credits recorded in the NVD database.
References
More from matrix
View All →CVE-2021-44538
The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable...
Critical
9.8
CVE-2021-40824
A logic error in the room key sharing functionality of...
Medium
5.9
CVE-2021-40823
A logic error in the room key sharing functionality of...
Medium
5.9
CVE-2021-34813
Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to...
Critical
9.8
CVE-2020-26891
AuthRestServlet in Matrix Synapse before 1.21.0 is vulnerable to XSS...
Medium
6.1
Affected Vendor
matrix
View all reports →Affected Software
synapse
Vulnerable Versions:
0
Timeline
Official Publish:
June 13th, 2018
Last Modified:
September 17th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.