Echo: libsoup3: security update to 3.6.5-8

medium Tenable Self-Hosted Container Security Plugin ID 457756

Description

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

- A flaw was found in SoupServer. This HTTP request smuggling vulnerability occurs because SoupServer
improperly handles requests that combine Transfer-Encoding: chunked and Connection: keep-alive headers. A
remote, unauthenticated client can exploit this by sending specially crafted requests, causing SoupServer
to fail to close the connection as required by RFC 9112. This allows the attacker to smuggle additional
requests over the persistent connection, leading to unintended request processing and potential denial-of-
service (DoS) conditions. (CVE-2026-1760)

Solution

Update the libsoup3 library and its related packages to version 3.6.5-8 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-1760

Plugin Details

Severity: Medium

ID: 457756

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.2

Percentile: 51.07

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-1760

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/1/2026

Vulnerability Publication Date: 2/2/2026

Reference Information

CVE: CVE-2026-1760