Node.js up to 25.2.1 denial of service

Summaryinfo

A vulnerability has been found in Node.js and classified as problematic. The impacted element is an unknown function. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2025-59465. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Node.js. It has been rated as problematic. This issue affects an unknown part. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

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) }) }) ```

It is possible to read the advisory at nodejs.org. The identification of this vulnerability is CVE-2025-59465 since 09/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 296677 (SUSE SLES15 / openSUSE 15 Security Update : nodejs22 (SUSE-SU-2026:0295-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (296677) and CERT Bund (WID-SEC-2026-0098). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• RESF Rocky Linux
• Open Source Node.js

Productinfo

Type

• JavaScript Library

Name

• Node.js

Version

• 4.x
• 5.x
• 6.x
• 7.x
• 8.x
• 9.x
• 10.x
• 11.x
• 12.x
• 13.x
• 14.x
• 15.x
• 16.x
• 17.x
• 18.x
• 20.19.0
• 20.19.1
• 20.19.2
• 20.19.3
• 20.19.4
• 20.19.5
• 20.19.6
• 22.21.0
• 22.21.1
• 24.0
• 24.1
• 24.2
• 24.3
• 24.4
• 24.5
• 24.6
• 24.7
• 24.8
• 24.9
• 24.10
• 24.11
• 24.12.0
• 25.2.0
• 25.2.1

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

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Timelineinfo

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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