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matrix synapse vulnerabilities and exploits
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445
VMScore
CVE-2020-26890
Matrix Synapse prior to 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote malicious users to execute a denial of service attack against the federation and common Matrix clients. If such a malformed ...
Matrix Synapse
Fedoraproject Fedora 32
Fedoraproject Fedora 33
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
312
VMScore
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
NA
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 -
NA
CVE-2024-31208
Synapse is an open-source Matrix homeserver. A remote Matrix user with malicious intent, sharing a room with Synapse instances prior to 1.105.1, can dispatch specially crafted events to exploit a weakness in the V2 state resolution algorithm. This can induce high CPU consumption ...
VMScore
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-5248
CVE-2024-3110
CVE-2024-5552
CVE-2024-29415
HTML injection
CVE-2024-3095
TCP
type confusion
CVE-2024-1800
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