vulnerability
Alpine Linux: CVE-2023-43796: Exposure of Sensitive Information to an Unauthorized Actor
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Oct 31, 2023 | Aug 22, 2024 | Dec 22, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Oct 31, 2023
Added
Aug 22, 2024
Modified
Dec 22, 2025
Description
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 Synapse 1.95.1 or 1.96.0rc1 to receive a patch. As a workaround, the `federation_domain_whitelist` can be used to limit federation traffic with a homeserver.
Solution
alpine-linux-upgrade-synapse
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