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matrix synapse vulnerabilities and exploits
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NA
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
NA
CVE-2022-39335
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those...
Matrix Synapse
NA
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
4.3
CVSSv2
CVE-2021-21332
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 1.27.0, the password reset endpoint served via Synapse was vulnerable to cross-site scripting ...
Matrix Synapse
Fedoraproject Fedora 34
4.3
CVSSv2
CVE-2021-21393
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 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm...
Matrix Synapse
Fedoraproject Fedora 34
4
CVSSv2
CVE-2021-21394
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 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm...
Matrix Synapse
Fedoraproject Fedora 34
2.6
CVSSv2
CVE-2021-21333
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 1.27.0, the notification emails sent for notifications for missed messages or for an expiring ...
Matrix Synapse
Fedoraproject Fedora 34
5
CVSSv2
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
5.8
CVSSv2
CVE-2021-21273
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 1.25.0, requests to user provided domains were not restricted to external IP addresses when ca...
Matrix Synapse
Fedoraproject Fedora 34
4.3
CVSSv2
CVE-2021-21274
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 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large fi...
Matrix Synapse
Fedoraproject Fedora 34
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2023-30310
CVE-2024-21683
CVE-2024-22187
chrome
deserialization
XPath injection
CVE-2024-27842
denial of service
CVE-2024-24851
google
CVE-2024-35400
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