Detections
Analytics

SCA: security update for matrix-synapse (GHSA-6qf2-7x63-mm6v)

medium Tenable Cloud Security Plugin ID 441870

Description

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

 - Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms,
 malicious homeservers can craft room events in such a way that prevents Synapse from providing full
 history to paginating clients. Clients could therefore fail to display room history. This vulnerability is
 fixed in 1.152.1. (CVE-2026-45076)

Solution

Update the matrix-synapse library and its related packages to version 1.152.1 or later.

See Also

https://github.com/advisories/GHSA-6qf2-7x63-mm6v

Plugin Details

Severity: Medium

ID: 441870

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/14/2026

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: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS Score Source: CVE-2026-45076

CVSS v3

Risk Factor: Low

Base Score: 2.7

Temporal Score: 2.4

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.1

Threat Score: 5.1

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2026

Vulnerability Publication Date: 5/14/2026

Reference Information

CVE: CVE-2026-45076

cwe: CWE-20