CVE-2025-59465
Node.js HTTP/2 Denial of Service Vulnerability
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) }) }) ```
INFO
Published Date :
Jan. 20, 2026, 9:16 p.m.
Last Modified :
Jan. 30, 2026, 8:25 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Implement explicit error handlers for secure sockets.
- Handle 'error' events on TLSSocket objects.
- Ensure proper socket error management in Node.js applications.
Public PoC/Exploit Available at Github
CVE-2025-59465 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-59465.
| URL | Resource |
|---|---|
| https://nodejs.org/en/blog/vulnerability/december-2025-security-releases | Release Notes Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-59465 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-59465
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-59465 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-59465 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jan. 30, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 25.0.0 up to (excluding) 25.3.0 *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 22.0.0 up to (excluding) 22.22.0 *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 24.0.0 up to (excluding) 24.13.0 *cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* versions from (including) 20.0.0 up to (excluding) 20.20.0 Added Reference Type HackerOne: https://nodejs.org/en/blog/vulnerability/december-2025-security-releases Types: Release Notes, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 21, 2026
Action Type Old Value New Value Added CWE CWE-400 -
New CVE Received by [email protected]
Jan. 20, 2026
Action Type Old Value New Value 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) }) }) ``` Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added Reference https://nodejs.org/en/blog/vulnerability/december-2025-security-releases