Detections
Analytics

SCA: security update for @element-hq/element-call-embedded (GHSA-6vhh-4xw6-h2h2)

high Tenable Self-Hosted Container Security Plugin ID 443068

Description

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

 - Element Call is a native Matrix video conferencing application. Versions 0.5.17 through 0.19.3 report
 analytics data to a PostHog server, when configured to by a `posthog` key in config.json or by the
 `posthogApiHost` and `posthogApiKey` URL parameters. Several fields of this data (`$initial_person_info`,
 `$session_entry_url`, and `$current_url`) were found to contain the full URL of the user's visited page,
 including the fragment. Users of a standalone Element Call ‘SPA’ instance such as https://call.element.io
 may therefore have reported the full URLs of certain calls, including encryption passwords, to the
 configured PostHog server, potentially compromising the confidentiality of the calls to actors who could
 access both the PostHog analytics data and the encrypted media streams. The same issue is present in
 Element Call's embedded package, but in practice it does not impact applications using this package
 (including Element Web, Element Desktop, Element X iOS, and Element X Android) because they distribute
 encryption keys over Matrix rather than encoding a password in the URL. The issue is patched in Element
 Call 0.19.4. Some workarounds are available. Users may opt out of analytics in the 'Feedback' tab of
 Element Call's settings and create new links for future calls. Admins who host Element Call as a
 standalone application may disable PostHog analytics entirely by removing the `posthog` key from their
 deployment's config.json file. (CVE-2026-48007)

Solution

Update the @element-hq/element-call-embedded library and its related packages to version 0.19.4 or later.

See Also

https://github.com/advisories/GHSA-6vhh-4xw6-h2h2

Plugin Details

Severity: High

ID: 443068

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/11/2026

Updated: 8/10/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.86

Vendor

Vendor Severity: High

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-2026-48007

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 6.2

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2026

Vulnerability Publication Date: 6/11/2026

Reference Information

CVE: CVE-2026-48007

cwe: CWE-200