Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-30706 Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 23 Apr 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-04-23T19:01:09.708Z

Reserved: 2021-11-16T00:00:00.000Z

Link: CVE-2021-43826

cve-icon Vulnrichment

Updated: 2024-08-04T04:03:09.047Z

cve-icon NVD

Status : Modified

Published: 2022-02-22T23:15:10.957

Modified: 2024-11-21T06:29:52.647

Link: CVE-2021-43826

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-02-22T07:00:00Z

Links: CVE-2021-43826 - Bugzilla

cve-icon OpenCVE Enrichment

No data.