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CVE-2026-24473— Hono has an Arbitrary Key Read in Serve static Middleware (Cloudflare Workers Adapter)

Quick assessment

Affected
honojs hono
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.

Hono是Hono社区的一个用 TypeScript 编写的 Web 框架。 Hono 4.11.7之前版本存在安全漏洞，该漏洞源于Cloudflare Workers适配器的静态服务中间件存在信息泄露，可能导致攻击者从Workers环境中读取任意密钥。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-24473

Vulnerability Information
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Vulnerability Title
Hono has an Arbitrary Key Read in Serve static Middleware (Cloudflare Workers Adapter)
Source: CVE Program / CVE List V5
Vulnerability Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, Serve static Middleware for the Cloudflare Workers adapter contains an information disclosure vulnerability that may allow attackers to read arbitrary keys from the Workers environment. Improper validation of user-controlled paths can result in unintended access to internal asset keys. Version 4.11.7 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Hono 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hono是Hono社区的一个用 TypeScript 编写的 Web 框架。 Hono 4.11.7之前版本存在安全漏洞，该漏洞源于Cloudflare Workers适配器的静态服务中间件存在信息泄露，可能导致攻击者从Workers环境中读取任意密钥。
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

Vendor Product Affected Versions CPE Subscribe
honojs hono < 4.11.7 -

II. Public POCs for CVE-2026-24473

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III. Intelligence Information for CVE-2026-24473

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Vendor Pages for CVE-2026-24473 (1)

Same Patch Batch · honojs · 2026-01-27 · 4 CVEs total

CVE-2026-24472 5.3 MEDIUM Hono cache middleware ignores "Cache-Control: private" leading to Web Cache Deception
CVE-2026-24398 4.8 MEDIUM Hono's IPv4 address validation bypass in IP Restriction Middleware allows IP spoofing
CVE-2026-24771 4.7 MEDIUM Hono has a Cross-site Scripting vulnerability

IV. Related Vulnerabilities

Same product: hono
Same vendor: honojs
Same weakness: CWE-200

V. Comments for CVE-2026-24473

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