CVE-2026-48933
Analyzed Analyzed - Analysis Complete
Process Crash in Node.js WebCrypto Due to 2GiB Input Size

Publication date: 2026-06-26

Last updated on: 2026-06-26

Assigner: HackerOne

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**.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-26
Last Modified
2026-06-26
Generated
2026-06-27
AI Q&A
2026-06-26
EPSS Evaluated
2026-06-26
NVD
CVE-2026-48933
EUVD
EUVD-2026-39609
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
nodejs node.js 26.3.0
nodejs node.js 24.16.0
nodejs node.js 22.22.3
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Mitigation Strategies

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

To mitigate this vulnerability, users should update Node.js to the latest patched versions where the issue has been fixed.

Executive Summary

This vulnerability is a flaw in the Node.js WebCrypto implementation where the process crashes if the input to the subtle.encrypt() function is exactly a multiple of 2 GiB in size.

Impact Analysis

The impact of this vulnerability is that the Node.js process can crash unexpectedly when handling encryption operations with input sizes that are multiples of 2 GiB, potentially causing denial of service.

Compliance Impact

The vulnerability in Node.js WebCrypto implementation causes a process crash when the input to subtle.encrypt() is a multiple of 2GiB. This results in an availability impact (denial of service) but does not affect confidentiality or integrity.

Since the vulnerability does not lead to data leakage or unauthorized access, it does not directly compromise data protection requirements under standards like GDPR or HIPAA. However, the availability impact could affect system reliability and uptime, which may indirectly influence compliance depending on the criticality of the affected systems.

No explicit information is provided about compliance impact in the available resources.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-48933. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart