Node.js 22.x/24.x/26.x node:zlib byteLength denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Node.js 22.x/24.x/26.x. The impacted element is an unknown function of the component node:zlib. Executing a manipulation of the argument byteLength can lead to denial of service. The identification of this vulnerability is CVE-2026-58045. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Node.js 22.x/24.x/26.x and classified as problematic. This vulnerability affects some unknown functionality of the component node:zlib. The manipulation of the argument byteLength with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous `node:zlib` APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected. Repeated exploitation of this condition can result in a denial of service. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.

This vulnerability was named CVE-2026-58045. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-52562) and CERT Bund (WID-SEC-2026-2585). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

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

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/04/2026 Advisory disclosed
08/04/2026 +0 days VulDB entry created
10/07/2026 +64 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-58045 (🔒)
GCVE (CVE): GCVE-0-2026-58045
GCVE (VulDB): GCVE-100-385744
EUVD: 🔒
CERT Bund: WID-SEC-2026-2585 - Node.js: Mehrere Schwachstellen

Entryinfo

Created: 08/04/2026 04:43
Updated: 10/07/2026 12:38
Changes: 08/04/2026 04:43 (49), 08/04/2026 06:53 (1), 08/31/2026 20:47 (7), 09/03/2026 00:44 (1), 09/04/2026 05:55 (12), 10/07/2026 12:35 (1), 10/07/2026 12:38 (6)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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