CVE-2022-21701— Privileged Escalation in Istio
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I. Basic Information for CVE-2022-21701
Vulnerability Information
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Vulnerability Title
Privileged Escalation in Istio
Source: NVD (National Vulnerability Database)
Vulnerability Description
Istio is an open platform to connect, manage, and secure microservices. In versions 1.12.0 and 1.12.1 Istio is vulnerable to a privilege escalation attack. Users who have `CREATE` permission for `gateways.gateway.networking.k8s.io` objects can escalate this privilege to create other resources that they may not have access to, such as `Pod`. This vulnerability impacts only an Alpha level feature, the Kubernetes Gateway API. This is not the same as the Istio Gateway type (gateways.networking.istio.io), which is not vulnerable. Users are advised to upgrade to resolve this issue. Users unable to upgrade should implement any of the following which will prevent this vulnerability: Remove the gateways.gateway.networking.k8s.io CustomResourceDefinition, set PILOT_ENABLE_GATEWAY_API_DEPLOYMENT_CONTROLLER=true environment variable in Istiod, or remove CREATE permissions for gateways.gateway.networking.k8s.io objects from untrusted users.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Istio 权限许可和访问控制问题漏洞
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版本存在权限许可和访问控制问题漏洞，攻击者可利用该漏洞升级权限以创建他们可能无权访问的其他资源。
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-2022-21701
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|---|
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- https://github.com/istio/istio/security/advisories/GHSA-mq8f-9446-c28rx_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-2022-21701
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
Same weakness: CWE-863
- CVE-2026-42571
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V. Comments for CVE-2022-21701
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