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CVE-2026-90452

Quick assessment

Affected
CISA Malcolm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

反向代理向身份提供商服务发起的令牌发现、内省和凭证交换请求，未验证身份提供商的服务器证书。位于代理与身份提供商之间网络路径上的攻击者可以冒充身份提供商，并向部署环境签发被接受的伪造认证令牌。

CVSS 6.0 · Medium EPSS 0.09% · P1

Affected Version Matrix 2

VendorProduct Version RangeStatus
CISA Malcolm < v26.06.0 affected
v26.06.0 unaffected
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I. Basic Information for CVE-2026-90452

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the identity provider and issue forged authentication tokens accepted by the deployment.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
CISA Malcolm 0 ~ v26.06.0 -

II. Public POCs for CVE-2026-90452

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III. Intelligence Information for CVE-2026-90452

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Same Patch Batch · CISA · 2026-09-11 · 15 CVEs total

CVE-2026-90456 9.2 CRITICAL 库存管理组件示例配置硬编码管理密码
CVE-2026-90444 8.7 HIGH 文件传输接口命令注入导致认证用户权限提升
CVE-2026-90451 8.2 HIGH 数据包分析组件硬编码密钥致认证Cookie可伪造
CVE-2026-90448 7.1 HIGH 只读模式未限制写操作，致记录可被覆盖
CVE-2026-90447 7.1 HIGH Apache Shiro 5.3.5 认证路由逻辑漏洞
CVE-2026-90445 7.1 HIGH 文件上传解压时路径遍历导致任意文件写入
CVE-2026-90457 6.9 MEDIUM 本地用户可读的管理密码弱哈希文件权限漏洞
CVE-2026-90449 6.9 MEDIUM 某网关特定认证模式下管理接口认证绕过
CVE-2026-90455 6.3 MEDIUM HTTP客户端库回滚致漏洞回归
CVE-2026-90454 5.3 MEDIUM Zeroc-ice读模式漏配允许修改会话标签
CVE-2026-90446 5.3 MEDIUM Elasticsearch 任意路径插值导致凭据泄露
CVE-2026-90450 5.3 MEDIUM 应用角色授权查找默认放行：未注册处理器可被任意用户访问
CVE-2026-90443 5.3 MEDIUM 软件未认证反射型XSS漏洞
CVE-2026-90453 5.1 MEDIUM 文件上传Referer未校验致任意重定向

IV. Related Vulnerabilities

Same product: Malcolm
Same vendor: CISA
Same weakness: CWE-295

V. Comments for CVE-2026-90452

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