CVE•Published 2026-07-08•Modified 2026-07-10•0 articles on news•5 live references•NVD data

CVE-2026-59897Hono · Hono

Vulnerability data via NVD (ingested)

CVSS v3.1

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-348Use of Less Trusted Source

Description

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.3.3 before 4.12.27, the AWS API Gateway v1 adapter can drop a distinct repeated request header value because it de-duplicates values using a substring comparison instead of an exact match, so middleware or application logic that depends on the complete X-Forwarded-For chain, rate limiting, audit logging, or proxy-chain validation can receive incomplete data. This issue is fixed in version 4.12.27.

Timeline

Published 2026-07-08

Modified 2026-07-10

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-59897

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Hono Hono"

All exposed Hono Hono instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Hono"

HTTP body or banner mentions "Hono" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-59897