Detections
Analytics
Alpine: multiple py3-waitress packages: security update to 1.4.1-r0
medium Tenable Self-Hosted Container Security Plugin ID 406723
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- In Waitress through version 1.4.0, if a proxy server is used in front of waitress, an invalid request may
be sent by an attacker that bypasses the front-end and is parsed differently by waitress leading to a
potential for HTTP request smuggling. Specially crafted requests containing special whitespace characters
in the Transfer-Encoding header would get parsed by Waitress as being a chunked request, but a front-end
server would use the Content-Length instead as the Transfer-Encoding header is considered invalid due to
containing invalid characters. If a front-end server does HTTP pipelining to a backend Waitress server
this could lead to HTTP request splitting which may lead to potential cache poisoning or unexpected
information disclosure. This issue is fixed in Waitress 1.4.1 through more strict HTTP field validation.
(CVE-2019-16789)
See Also
Plugin Details
Severity: Medium
ID: 406723
Version: Revision 1.27
Type: Local
Published: 10/31/2023
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 5.5
Percentile: 96.97
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2019-16789
CVSS v3
Risk Factor: High
Base Score: 8.2
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 5.1
Threat Score: 1.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 12/26/2019
Reference Information
CVE: CVE-2019-16789