Detections
Analytics

SCA: security update for org.matrix.android:matrix-android-sdk2 (GHSA-jjmc-4p83-pp26)

medium Tenable Cloud Security Plugin ID 433513

Description

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

 - A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-
 sdk2 (aka Matrix SDK for Android) before 1.2.2 allows a malicious Matrix homeserver present in an
 encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally
 sent by affected Matrix clients participating in that room. This allows the attacker to decrypt end-to-end
 encrypted messages sent by affected clients. (CVE-2021-40824)

See Also

https://github.com/advisories/GHSA-jjmc-4p83-pp26

Plugin Details

Severity: Medium

ID: 433513

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-40824

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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: 5/24/2022

Vulnerability Publication Date: 9/13/2021

Reference Information

CVE: CVE-2021-40824

cwe: CWE-327