Vulnerability · Published Jan 27, 2026 · Assigned by GitHub_M

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

Medium 6.3

In plain English

A medium-severity information exposure in hono from honojs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.5%top 58.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	hono	4.11.7	GHSA-w332-q679-j88p

Affected products (as reported)

Vendor	Product	Versions
honojs	hono	< 4.11.7

Weakness: CWE-200, CWE-284, CWE-668 · Vector: 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

References

https://github.com/honojs/hono/security/advisories/GHSA-w332-q679-j88p x_refsource_CONFIRM
https://github.com/honojs/hono/commit/cf9a78db4d0a19b117aee399cbe9d3a6d9bfd817 x_refsource_MISC
https://github.com/honojs/hono/releases/tag/v4.11.7 x_refsource_MISC