CVE-2026-24473Network attack vector

Arbitrary asset-key reads via raw path fallback

Published Jan 27, 2026 · Updated Jan 27, 2026

Information disclosure in Hono before 4.11.7 allows remote attackers to read arbitrary Cloudflare Workers asset keys via crafted paths. The Cloudflare Workers getContentFromKVAsset function uses a user-controlled path itself as the KV lookup key when the asset manifest has no matching entry. Exposure requires a Cloudflare Workers application using serveStatic with user-controllable request paths, and it permits reads only, not writes or code execution.

CVSS severity6.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Hono before 4.11.7 allows remote attackers to read arbitrary Cloudflare Workers asset keys via crafted paths. The Cloudflare Workers getContentFromKVAsset function uses a user-controlled path itself as the KV lookup key when the asset manifest has no matching entry. Exposure requires a Cloudflare Workers application using serveStatic with user-controllable request paths, and it permits reads only, not writes or code execution.

The record

CVE
CVE-2026-24473
Published
Jan 27, 2026
Updated
Jan 27, 2026
Vendor
Hono
Product
Hono
Classifications
CWE-668, CWE-200, CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.11.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hono · Honoversion=< 4.11.7

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3GitHub, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-668Exposure of Resource to Wrong Sphere
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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