A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2GiB.

This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

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Solution

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Workaround

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History

Sat, 27 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
Title Node.js WebCrypto Subtle.encrypt Integer Overflow Crash nodejs: Node.js WebCrypto: Denial of Service via large input to subtle.encrypt()
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-770
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
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


Fri, 26 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 26 Jun 2026 07:30:00 +0000

Type Values Removed Values Added
First Time appeared Nodejs
Nodejs nodejs
Vendors & Products Nodejs
Nodejs nodejs

Fri, 26 Jun 2026 03:45:00 +0000

Type Values Removed Values Added
Title Node.js WebCrypto Subtle.encrypt Integer Overflow Crash

Fri, 26 Jun 2026 01:30:00 +0000

Type Values Removed Values Added
Description A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2GiB. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Weaknesses CWE-190
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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-06-26T15:06:12.149Z

Reserved: 2026-05-26T15:00:06.427Z

Link: CVE-2026-48933

cve-icon Vulnrichment

Updated: 2026-06-26T15:06:07.181Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-26T01:14:36Z

Links: CVE-2026-48933 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-27T02:00:10Z

Weaknesses