Detections
Analytics

SCA: security update for matrix-synapse (GHSA-mp92-3jfm-3575)

medium Tenable Cloud Security Plugin ID 417051

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2023-43796)

See Also

https://github.com/advisories/GHSA-mp92-3jfm-3575

Plugin Details

Severity: Medium

ID: 417051

Version: Revision 1.12

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2023-43796

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/31/2023

Vulnerability Publication Date: 10/31/2023

Reference Information

CVE: CVE-2023-43796

cwe: CWE-200