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CVE-2022-21679 Details

Description

Istio is an open platform to connect, manage, and secure microservices. In Istio 1.12.0 and 1.12.1 The authorization policy with hosts and notHosts might be accidentally bypassed for ALLOW action or rejected unexpectedly for DENY action during the upgrade from 1.11 to 1.12.0/1.12.1. Istio 1.12 supports the hosts and notHosts fields in authorization policy with a new Envoy API shipped with the 1.12 data plane. A bug in the 1.12.0 and 1.12.1 incorrectly uses the new Envoy API with the 1.11 data plane. This will cause the hosts and notHosts fields to be always matched regardless of the actual value of the host header when mixing 1.12.0/1.12.1 control plane and 1.11 data plane. Users are advised to upgrade or to not mix the 1.12.0/1.12.1 control plane with 1.11 data plane if using hosts or notHosts field in authorization policy.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/istio/istio/security/advisories/GHSA-rwfr-xrvw-2rvv	CVE	Third Party Advisory
https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/	CVE	Release NotesVendor Advisory
https://github.com/istio/istio/security/advisories/GHSA-rwfr-xrvw-2rvv	[email protected]	Third Party Advisory
https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/	[email protected]	Release NotesVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-670	Always-Incorrect Control Flow Implementation	[email protected]
CWE-670	Always-Incorrect Control Flow Implementation	[email protected]

Affected Products

Product	Versions
istio istio	1.12.0 - 1.12.0 alpha0 1.12.0 alpha1 1.12.0 alpha5 1.12.0 beta0
CPE cpe:2.3:a:istio:istio:1.12.0:-:::::: cpe:2.3:a:istio:istio:1.12.0:alpha0:::::: cpe:2.3:a:istio:istio:1.12.0:alpha1:::::: cpe:2.3:a:istio:istio:1.12.0:alpha5:::::: cpe:2.3:a:istio:istio:1.12.0:beta0:::::: cpe:2.3:a:istio:istio:1.12.0:beta1:::::: cpe:2.3:a:istio:istio:1.12.0:beta2:::::: cpe:2.3:a:istio:istio:1.12.0:rc1:::::: cpe:2.3:a:istio:istio:1.12.1:::::::* Remediation No remediation found in references.

Product

Versions

istio istio

1.12.0 -

1.12.0 alpha0

1.12.0 alpha1

1.12.0 alpha5

1.12.0 beta0

CPE

cpe:2.3:a:istio:istio:1.12.0:-:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:alpha0:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:alpha5:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:beta0:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:beta1:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:beta2:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.0:rc1:*:*:*:*:*:*
cpe:2.3:a:istio:istio:1.12.1:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 27, 2022	Initial Analysis	[email protected]