Detections
Analytics

Echo: libsoup3: security update to 3.6.6-1+e3

medium Tenable Self-Hosted Container Security Plugin ID 457959

Description

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

 - A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The
 soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends
 each header value without validating for duplicate or conflicting Content-Length fields. This allows an
 attacker to send HTTP requests containing multiple Content-Length headers with differing values.
 (CVE-2026-2708)

Solution

Update the libsoup3 library and its related packages to version 3.6.6-1+e3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-2708

Plugin Details

Severity: Medium

ID: 457959

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-2708

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/20/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-2708

IAVA: 2026-A-0165-S