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SCA: security update for waitress (GHSA-4f7p-27jc-3c36)

high Tenable Self-Hosted Container Security Plugin ID 410128

Description

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

 - Waitress is a Web Server Gateway Interface server for Python 2 and 3. When using Waitress versions 2.1.0
 and prior behind a proxy that does not properly validate the incoming HTTP request matches the RFC7230
 standard, Waitress and the frontend proxy may disagree on where one request starts and where it ends. This
 would allow requests to be smuggled via the front-end proxy to waitress and later behavior. There are two
 classes of vulnerability that may lead to request smuggling that are addressed by this advisory: The use
 of Python's `int()` to parse strings into integers, leading to `+10` to be parsed as `10`, or `0x01` to be
 parsed as `1`, where as the standard specifies that the string should contain only digits or hex digits;
 and Waitress does not support chunk extensions, however it was discarding them without validating that
 they did not contain illegal characters. This vulnerability has been patched in Waitress 2.1.1. A
 workaround is available. When deploying a proxy in front of waitress, turning on any and all functionality
 to make sure that the request matches the RFC7230 standard. Certain proxy servers may not have this
 functionality though and users are encouraged to upgrade to the latest version of waitress instead.
 (CVE-2022-24761)

See Also

https://github.com/advisories/GHSA-4f7p-27jc-3c36

Plugin Details

Severity: High

ID: 410128

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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:N/I:P/A:N

CVSS Score Source: CVE-2022-24761

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:N/I:H/A:N

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/18/2022

Vulnerability Publication Date: 3/17/2022

Reference Information

CVE: CVE-2022-24761

cwe: CWE-444