Waitress is a Web Server Gateway Interface server for Python 2 and 3. Waitress versions 2.1.0 and 2.1.1 may terminate early due to a thread closing a socket while the main thread is about to call select(). This will lead to the main thread raising an exception that is not handled and then causing the entire application to be killed. This issue has been fixed in Waitress 2.1.2 by no longer allowing the WSGI thread to close the socket. Instead, that is always delegated to the main thread. There is no work-around for this issue. However, users using waitress behind a reverse proxy server are less likely to have issues if the reverse proxy always reads the full response.
History

Tue, 22 Apr 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-05-31T22:50:12.000Z

Updated: 2025-04-22T17:55:26.641Z

Reserved: 2022-05-18T00:00:00.000Z

Link: CVE-2022-31015

cve-icon Vulnrichment

Updated: 2024-08-03T07:03:40.285Z

cve-icon NVD

Status : Modified

Published: 2022-05-31T23:15:07.960

Modified: 2024-11-21T07:03:43.063

Link: CVE-2022-31015

cve-icon Redhat

Severity : Low

Publid Date: 2022-06-01T00:00:00Z

Links: CVE-2022-31015 - Bugzilla