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synapse vulnerabilities and exploits
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4.3
CVSSv3
CVE-2023-32323
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with f...
Matrix Synapse
6.8
CVSSv3
CVE-2022-47632
Razer Synapse prior to 3.7.0830.081906 allows privilege escalation due to an unsafe installation path, improper privilege management, and improper certificate validation. Attackers can place malicious DLLs into %PROGRAMDATA%\Razer\Synapse3\Service\bin if they do so before the ser...
Razer Synapse
5.3
CVSSv3
CVE-2022-41952
Synapse prior to 1.52.0 with URL preview functionality enabled will attempt to generate URL previews for media stream URLs without properly limiting connection time. Connections will only be terminated after `max_spider_size` (default: 10M) bytes have been downloaded, which can i...
Matrix Synapse
7.5
CVSSv3
CVE-2022-31152
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix specification specifies a list of [event authorization rules](https://spec.matrix.org/v1.2/rooms/v9/#authorization-rules) which must be checked when determining if an event...
Matrix Synapse
8.8
CVSSv3
CVE-2022-36009
gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the `"events_default"` key of the `m.room.power_levels` even...
Matrix Dendrite
Matrix Gomatrixserverlib -
6.5
CVSSv3
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
7.3
CVSSv3
CVE-2021-44226
Razer Synapse prior to 3.7.0228.022817 allows privilege escalation because it relies on %PROGRAMDATA%\Razer\Synapse3\Service\bin even if %PROGRAMDATA%\Razer has been created by any unprivileged user before Synapse is installed. The unprivileged user may have placed Trojan horse D...
Razer Synapse
7.5
CVSSv3
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
3.1
CVSSv3
CVE-2021-39164
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) of a room if they know the ID of the room. The vulnerability is limited to rooms w...
Matrix Synapse
Fedoraproject Fedora 34
Fedoraproject Fedora 35
3.1
CVSSv3
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
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2006-4304
CVE-2024-4240
arbitrary
CVE-2024-31601
XSS
CVE-2023-20198
CVE-2024-4256
CVE-2024-3342
encryption
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