Detections
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SCA: security update for matrix-synapse (GHSA-98px-6486-j7qc)

medium Tenable Cloud Security Plugin ID 413149

Description

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

 - Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. A discovered oEmbed
 or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request
 forgery or bypassing network policies. Impact is limited to IP addresses allowed by the
 `url_preview_ip_range_blacklist` setting (by default this only allows public IPs) and by the limited
 information returned to the client: 1. For discovered oEmbed URLs, any non-JSON response or a JSON
 response which includes non-oEmbed information is discarded. 2. For discovered image URLs, any non-image
 response is discarded. Systems which have URL preview disabled (via the `url_preview_enabled` setting) or
 have not configured a `url_preview_url_blacklist` are not affected. This issue has been addressed in
 version 1.85.0. Users are advised to upgrade. User unable to upgrade may also disable URL previews.
 (CVE-2023-32683)

See Also

https://github.com/advisories/GHSA-98px-6486-j7qc

Plugin Details

Severity: Medium

ID: 413149

Version: Revision 1.8

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: 2.1

Percentile: 7.51

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2023-32683

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 1.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/6/2023

Vulnerability Publication Date: 6/6/2023

Reference Information

CVE: CVE-2023-32683