Echo: libsoup3: security update to 3.6.6-1+e7

high Tenable Self-Hosted Container Security Plugin ID 473207

Description

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

- A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection
emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes.
Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a
crash upon receiving a crafted Pong. (CVE-2026-102556)

Solution

Update the libsoup3 library and its related packages to version 3.6.6-1+e7 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-102556

Plugin Details

Severity: High

ID: 473207

Version: Revision 1.1

Type: Local

Published: 10/6/2026

Updated: 10/6/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Percentile: 96.19

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-102556

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2026

Vulnerability Publication Date: 9/29/2026

Reference Information

CVE: CVE-2026-102556