| CVE-2026-45078 |
high |
— |
8.0 |
|
|
|
14d ago |
Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing o… |
| CVE-2019-5885 |
high |
— |
8.0 |
|
|
|
4y ago |
Matrix Synapse before 0.34.0.1, when the macaroon_secret_key authentication parameter is not set, uses a predictable value to derive a secret key and other secrets which could allow remote attackers … |
| CVE-2020-26890 |
high |
— |
8.0 |
|
|
|
6y ago |
Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service atta… |
| CVE-2020-26891 |
high |
— |
8.0 |
|
|
|
6y ago |
AuthRestServlet in Matrix Synapse before 1.21.0 is vulnerable to XSS due to unsafe interpolation of the session GET parameter. This allows a remote attacker to execute an XSS attack on the domain Syn… |
| CVE-2026-45076 |
medium |
— |
5.5 |
|
|
|
14d ago |
Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full h… |
| CVE-2021-41281 |
medium |
— |
5.5 |
|
|
|
5y ago |
Synapse is a package for Matrix homeservers written in Python 3/Twisted. Prior to version 1.47.1, Synapse instances with the media repository enabled can be tricked into downloading a file from a rem… |
| CVE-2021-39163 |
medium |
— |
5.5 |
|
|
|
5y ago |
Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if t… |
| CVE-2021-39164 |
medium |
— |
5.5 |
|
|
|
5y ago |
Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) o… |
| CVE-2021-29471 |
medium |
— |
5.5 |
|
|
|
5y ago |
Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.33.2 "Push … |
| CVE-2020-26257 |
medium |
— |
5.5 |
|
|
|
6y ago |
Matrix is an ecosystem for open federated Instant Messaging and VoIP. Synapse is a reference "homeserver" implementation of Matrix. A malicious or poorly-implemented homeserver can inject malformed e… |