Vulnerabilities / CVE-2022-21679

critical

CVE-2022-21679

istio: Authorization policy bypass

Published Modified CWE 670
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium).

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.

Affected packages and fixed versions

SourcePackageFixed in
Red Hatservicemesh, servicemesh-citadel, servicemesh-cni and 7 moreno fix listed
Show all 10 entries from 1 source
SourcePackageFixed in
Red Hatservicemeshno fix listed
Red Hatservicemesh-citadelno fix listed
Red Hatservicemesh-cnino fix listed
Red Hatservicemesh-galleyno fix listed
Red Hatservicemesh-istioctlno fix listed
Red Hatservicemesh-mixcno fix listed
Red Hatservicemesh-mixsno fix listed
Red Hatservicemesh-pilot-agentno fix listed
Red Hatservicemesh-pilot-discoveryno fix listed
Red Hatservicemesh-sidecar-injectorno fix listed

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.