CVE-2026-48933: CWE-190 Integer Overflow in nodejs node
An integer overflow vulnerability exists in the Node.js WebCrypto implementation that can cause the process to crash when the input to subtle.encrypt() is a multiple of 2 GiB. This affects specific versions of Node.js 22, 24, and 26. The vulnerability has a high severity score and impacts availability but does not affect confidentiality or integrity.
AI Analysis
Technical Summary
CVE-2026-48933 is an integer overflow (CWE-190) vulnerability in the Node.js WebCrypto API. Specifically, if the input to the subtle.encrypt() function is a multiple of 2 GiB, the process may crash due to improper handling of large input sizes. This affects Node.js versions 22.22.3, 24.16.0, and 26.3.0. The vulnerability has a CVSS 3.0 base score of 7.5, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability (process crash). There is no vendor advisory or patch information provided, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability causes a denial of service by crashing the Node.js process when processing large inputs to subtle.encrypt(). There is no impact on confidentiality or integrity. This can disrupt applications relying on Node.js WebCrypto for encryption operations, potentially causing downtime or service interruptions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid passing inputs that are multiples of 2 GiB to subtle.encrypt() in affected Node.js versions. Monitor official Node.js channels for updates and patches addressing this issue.
CVE-2026-48933: CWE-190 Integer Overflow in nodejs node
Description
An integer overflow vulnerability exists in the Node.js WebCrypto implementation that can cause the process to crash when the input to subtle.encrypt() is a multiple of 2 GiB. This affects specific versions of Node.js 22, 24, and 26. The vulnerability has a high severity score and impacts availability but does not affect confidentiality or integrity.
CVSS v3.0
Score 7.5high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-48933 is an integer overflow (CWE-190) vulnerability in the Node.js WebCrypto API. Specifically, if the input to the subtle.encrypt() function is a multiple of 2 GiB, the process may crash due to improper handling of large input sizes. This affects Node.js versions 22.22.3, 24.16.0, and 26.3.0. The vulnerability has a CVSS 3.0 base score of 7.5, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to availability (process crash). There is no vendor advisory or patch information provided, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability causes a denial of service by crashing the Node.js process when processing large inputs to subtle.encrypt(). There is no impact on confidentiality or integrity. This can disrupt applications relying on Node.js WebCrypto for encryption operations, potentially causing downtime or service interruptions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid passing inputs that are multiples of 2 GiB to subtle.encrypt() in affected Node.js versions. Monitor official Node.js channels for updates and patches addressing this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-05-26T15:00:06.427Z
- Cvss Version
- 3.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3dd65f4853345fc1fa2e2e
Added to database: 06/26/2026, 01:31:11 UTC
Last enriched: 06/26/2026, 01:45:59 UTC
Last updated: 06/26/2026, 01:45:59 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.