CVE-2022-21679— Authorization Policy bypass in Istio
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I. Basic Information for CVE-2022-21679
Vulnerability Information
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Vulnerability Title
Authorization Policy bypass in Istio
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
控制流实现总是不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Istio 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Istio是一套连接、管理和保护微服务的开放平台。 Istio 1.12.0 和 1.12.1版本存在授权问题漏洞，攻击者可利用该漏洞绕过主机和NOTHOST的授权策略，或执行拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-21679
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- https://github.com/istio/istio/security/advisories/GHSA-rwfr-xrvw-2rvvx_refsource_CONFIRM
- https://istio.io/latest/news/releases/1.12.x/announcing-1.12.2/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2022-21679
IV. Related Vulnerabilities
Same product: istio
- CVE-2026-41413
Istio Vulnerable to SSRF via RequestAuthentication jwksUri - CVE-2026-39350
Istio AuthorizationPolicy Incorrect Regex Matching of Dots i - CVE-2026-31838
Istio HTTP debug endpoints on port 15014 to enforce namespac - CVE-2026-31837
Istio JWKS resolver to prevent private key material from bei - CVE-2022-39388
Istio may allow identity impersonation if user has localhost
Same vendor: istio
- CVE-2026-41413
Istio Vulnerable to SSRF via RequestAuthentication jwksUri - CVE-2026-39350
Istio AuthorizationPolicy Incorrect Regex Matching of Dots i - CVE-2026-31838
Istio HTTP debug endpoints on port 15014 to enforce namespac - CVE-2026-31837
Istio JWKS resolver to prevent private key material from bei - CVE-2022-39388
Istio may allow identity impersonation if user has localhost
V. Comments for CVE-2022-21679
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