CVE-2024-32652

@hono/node-server contains Denial of Service risk when receiving Host header that cannot be parsed

7.5 HighFix available

The adapter @hono/node-server allows you to run your Hono application on Node.js. Prior to 1.10.1, the application hangs when receiving a Host header with a value that @hono/node-server can't handle well. Invalid values are those that cannot be parsed by the URL as a hostname such as an empty string, slashes /, and other strings. The version 1.10.1 includes the fix for this issue.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.88%Up 0.8 points since Apr 20, 2024

What each source reports

CVE List Score used 7.5

@hono/node-server contains Denial of Service risk when receiving Host header that cannot be parsed

Record: CVE-2024-32652
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-755
Updated: 2026-11-02

EUVDEUVD-2024-1214 7.5

Record: EUVD-2024-1214
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-hgxw-5xg3-69jx 7.5

@hono/node-server has Denial of Service risk when receiving Host header that cannot be parsed

Impact

The application hangs when receiving a Host header with a value that @hono/node-server can't handle well. Invalid values are those that cannot be parsed by the URL as a hostname such as an empty string, slashes /, and other strings.

For example, if you have a simple application:

import { serve } from '@hono/node-server'
import { Hono } from 'hono'

const app = new Hono()

app.get('/', (c) => c.text('Hello'))

serve(app)

Sending a request with a Host header with an empty value to it:

curl localhost:3000/ -H "Host: "

The results:

node:internal/url:775
    this.#updateContext(bindingUrl.parse(input, base));
                                   ^

TypeError: Invalid URL
    at new URL (node:internal/url:775:36)
    at newRequest (/Users/yusuke/work/h/159/node_modules/@hono/node-server/dist/index.js:137:17)
    at Server.<anonymous> (/Users/yusuke/work/h/159/node_modules/@hono/node-server/dist/index.js:399:17)
    at Server.emit (node:events:514:28)
    at Server.emit (node:domain:488:12)
    at parserOnIncoming (node:_http_server:1143:12)
    at HTTPParser.parserOnHeadersComplete (node:_http_common:119:17) {
  code: 'ERR_INVALID_URL',
  input: 'http:///'
}

Patches

The version 1.10.1 includes the fix for this issue. But, you should use 1.11.0, which has other fixes related to this issue. https://github.com/honojs/node-server/issues/160 https://github.com/honojs/node-server/issues/161

Workarounds

Nothing. Upgrade your @hono/node-server.

References

https://github.com/honojs/node-server/issues/159

Record: GHSA-hgxw-5xg3-69jx
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-755
Updated: 2026-11-02

NVD 7.5

Record: CVE-2024-32652
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-755
Updated: 2026-11-02

OSV 7.5

@hono/node-server contains Denial of Service risk when receiving Host header that cannot be parsed

Record: CVE-2024-32652
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-755
Updated: 2026-11-02

OSVGHSA-hgxw-5xg3-69jx 7.5

@hono/node-server has Denial of Service risk when receiving Host header that cannot be parsed

Impact

For example, if you have a simple application:

import { serve } from '@hono/node-server'
import { Hono } from 'hono'

const app = new Hono()

app.get('/', (c) => c.text('Hello'))

serve(app)

Sending a request with a Host header with an empty value to it:

curl localhost:3000/ -H "Host: "

The results:

node:internal/url:775
    this.#updateContext(bindingUrl.parse(input, base));
                                   ^

TypeError: Invalid URL
    at new URL (node:internal/url:775:36)
    at newRequest (/Users/yusuke/work/h/159/node_modules/@hono/node-server/dist/index.js:137:17)
    at Server.<anonymous> (/Users/yusuke/work/h/159/node_modules/@hono/node-server/dist/index.js:399:17)
    at Server.emit (node:events:514:28)
    at Server.emit (node:domain:488:12)
    at parserOnIncoming (node:_http_server:1143:12)
    at HTTPParser.parserOnHeadersComplete (node:_http_common:119:17) {
  code: 'ERR_INVALID_URL',
  input: 'http:///'
}

Patches

Workarounds

Nothing. Upgrade your @hono/node-server.

References

https://github.com/honojs/node-server/issues/159

Record: GHSA-hgxw-5xg3-69jx
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-755
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`@hono/node-server` npm	1.3.0 up to 1.10.1	1.10.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-32652 is a high vulnerability (CVSS 7.5) in Hono Node-server, published April 19, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. Fixed in @hono/node-server 1.10.1.