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matrix synapse vulnerabilities and exploits
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3.5
CVSSv2
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-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
5
CVSSv2
CVE-2019-5885
Matrix Synapse prior to 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 malicious users to impersonate users.
Matrix Synapse
Fedoraproject Fedora 28
Fedoraproject Fedora 29
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 ...
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-36920
buffer overflow
CVE-2024-36913
CVE-2024-5497
CVE-2024-23917
CVE-2024-4956
server-side request forgery
CVE-2024-35468
SSTI
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