# CVE-2026-48933 — nodejs node

> As of 2026-08-10, CVE-2026-48933 is a HIGH-severity vulnerability in nodejs node, CVSS v3.1 7.5, EPSS 3.7% (89.4th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-48933, most recently “Node.js June 2026 Security Release — 12 Vulnerabilities Across 22.x/24.x/26.x Including Two High-Severity TLS Authentication Bypass and WebCrypto DoS Flaws (CVE-2026-48618, CVE-2026-48933)”.

**Last updated:** 2026-08-10

## What is CVE-2026-48933?

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**.

The record classifies CVE-2026-48933 under weakness classes [CWE-190](https://intel.threadlinqs.com/cwe/CWE-190), [CWE-770](https://intel.threadlinqs.com/cwe/CWE-770). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 135 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **EPSS (FIRST):** 3.7% probability of exploitation in the next 30 days, higher than 89.4% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-26, last modified 2026-08-10

## Is CVE-2026-48933 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [nodejs](https://intel.threadlinqs.com/vendors/nodejs): node

## How to fix CVE-2026-48933

No vendor patch reference has been recorded for CVE-2026-48933 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-48933

1 tracked threat in the Threadlinqs corpus references CVE-2026-48933, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Node.js June 2026 Security Release — 12 Vulnerabilities Across 22.x/24.x/26.x Including Two High-Severity TLS Authentication Bypass and WebCrypto DoS Flaws (CVE-2026-48618, CVE-2026-48933)](https://intel.threadlinqs.com/threat/TL-2026-0866) — HIGH · 2026-06-19

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [nodejs.org](https://nodejs.org/en/blog/vulnerability/june-2026-security-releases)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-48933
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