CVE-2026-50202— Steeltoe JWKS缓存共享且未失效漏洞
可能的 ATT&CK 技术 1AI
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一、 漏洞 CVE-2026-50202 基础信息
漏洞信息
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Vulnerability Title
Steeltoe's static JWKS cache shared across schemes and never invalidated
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Security.Authentication.CloudFoundryBase prior to version 3.4.0, Steeltoe.Security.Authentication.JwtBearer prior to version 4.2.0, and Steeltoe.Security.Authentication.OpenIdConnect prior to version 4.2.0, the JWT signing key cache in `TokenKeyResolver` uses `kid` as the sole cache key without namespacing by authority. In applications with multiple `JwtBearer` schemes pointing to different identity providers, a key fetched for one scheme can satisfy token validation for another. Additionally, cached keys have no expiration, so rotated or revoked keys remain trusted until the application process restarts. Steeltoe.Security.Authentication.CloudFoundryBase version 3.4.0, Steeltoe.Security.Authentication.JwtBearer version 4.2.0, and Steeltoe.Security.Authentication.OpenIdConnect version 4.2.0 patch the issue. If an immediate upgrade is not possible: In multi-scheme deployments, configure only one `JwtBearer` scheme per application when different identity providers are required; and/or restart the application process after an identity provider signing key rotation to clear stale cached keys.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
将资源暴露给错误范围
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| SteeltoeOSS | Steeltoe.Security.Authentication.CloudFoundryBase | < 3.4.0 | - | |
| SteeltoeOSS | Steeltoe.Security.Authentication.JwtBearer | < 4.2.0 | - | |
| SteeltoeOSS | Steeltoe.Security.Authentication.OpenIdConnect | < 4.2.0 | - |
二、漏洞 CVE-2026-50202 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-50202 补丁与修复 (1)
CVE-2026-50202 厂商安全公告 (1)
同批安全公告 · SteeltoeOSS · 2026-06-17 · 共 7 条
| CVE-2026-50194 | 8.2 HIGH | Steeltoe 通过欺骗Host头绕过管理端口隔离 |
| CVE-2026-50196 | 7.5 HIGH | Steeltoe.Discovery.Eureka 数据中心名称导致注册表获取失败漏洞 |
| CVE-2026-50200 | 7.5 HIGH | Steeltoe 环境清理器未清除连接字符串导致数据库密码泄露 |
| CVE-2026-50201 | 6.5 MEDIUM | Steeltoe敏感执行器仅需受限权限 |
| CVE-2026-50267 | 4.7 MEDIUM | Steeltoe TLS 私钥默认权限写入/tmp且未删除 |
| CVE-2026-50268 | 1.9 LOW | Steeltoe OAEP设置静默选择PKCS#1 v1.5填充漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-50202
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