CVE-2025-59465

nodejs: Nodejs denial of service

Published Jan 20, 2026 CVSS 3.1 · 7.5 High EPSS 4.0% KEV · Not listed
Description
A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example:
```
server.on('secureConnection', socket => {
socket.on('error', err => {
console.log(err)
})
})
```

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4598-1 nodejs security update
Debian DSA Debian DSA DSA-6166-1 nodejs security update
Debian DSA Debian DSA DSA-6272-1 nodejs security update
History
Type Values Removed Values Added
First Time appeared Nodejs node.js
CPEs cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
Vendors & Products Nodejs node.js
Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title nodejs: Nodejs denial of service
Weaknesses CWE-248
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Important

Type Values Removed Values Added
First Time appeared Nodejs
Nodejs nodejs
Vendors & Products Nodejs
Nodejs nodejs
Type Values Removed Values Added
Description A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example: ``` server.on('secureConnection', socket => { socket.on('error', err => { console.log(err) }) }) ```
References
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Jul 15, 2026, 1:25 AM
Reserved
Sep 16, 2025, 3:00 PM
Status
Modified
Published
Jan 20, 2026, 9:16 PM
Modified
Jul 15, 2026, 2:17 AM
Severity
Important
Public date
Jan 20, 2026, 8:41 PM