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matrix synapse vulnerabilities and exploits
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445
VMScore
CVE-2021-29471
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 rules" can specify conditions under which they will match, including `e...
Matrix Synapse
Fedoraproject Fedora 34
578
VMScore
CVE-2018-16515
Matrix Synapse prior to 0.33.3.1 allows remote malicious users to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
Matrix Synapse
Debian Debian Linux 8.0
NA
CVE-2023-42453
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This co...
Matrix Synapse
Fedoraproject Fedora 37
Fedoraproject Fedora 38
383
VMScore
CVE-2021-41281
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 remote server into an arbitrary directory. No authentication is required for the aff...
Matrix Synapse
Fedoraproject Fedora 34
Fedoraproject Fedora 35
356
VMScore
CVE-2020-26257
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 events into a room by specifying a different room id in the path of a `/...
Matrix Synapse
Fedoraproject Fedora 32
Fedoraproject Fedora 33
312
VMScore
CVE-2022-31052
Synapse is an open source home server implementation for the Matrix chat network. In versions before 1.61.1 URL previews of some web pages can exhaust the available stack space for the Synapse process due to unbounded recursion. This is sometimes recoverable and leads to an error...
Matrix Synapse
Fedoraproject Fedora 35
Fedoraproject Fedora 36
NA
CVE-2023-45129
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Prior to version 1.94.0, a malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service. Homeservers running on a closed fede...
Matrix Synapse
Fedoraproject Fedora 37
Fedoraproject Fedora 38
NA
CVE-2023-41335
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already lea...
Matrix Synapse
Fedoraproject Fedora 37
Fedoraproject Fedora 38
NA
CVE-2023-43796
Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Syna...
Matrix Synapse
Fedoraproject Fedora 38
Fedoraproject Fedora 39
312
VMScore
CVE-2021-39163
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 they know the ID of the room. This vulnerability is limited to homeservers where t...
Matrix Synapse
Fedoraproject Fedora 34
Fedoraproject Fedora 35
VMScore
CVSSv2
CVSSv3
VMScore
Recommendations:
authentication bypass
CVE-2024-30043
camera
CVE-2023-40404
CVE-2024-2793
client side
CVE-2024-4469
CVE-2024-3565
CVE-2024-29825
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