CVE-2026-48933

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-26 · updated 2026-10-25
Weakness: CWE-190

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**.

Affected products

Node.js: 22.22.3, 24.16.0, 26.3.0

References

https://nodejs.org/en/blog/vulnerability/june-2026-security-releases
https://access.redhat.com/errata/RHSA-2026:28727
https://access.redhat.com/errata/RHSA-2026:29012
https://access.redhat.com/errata/RHSA-2026:30172
https://access.redhat.com/errata/RHSA-2026:35841
https://access.redhat.com/errata/RHSA-2026:35842
https://access.redhat.com/errata/RHSA-2026:35891
https://access.redhat.com/errata/RHSA-2026:35892
https://access.redhat.com/errata/RHSA-2026:39246
https://access.redhat.com/errata/RHSA-2026:39868
https://access.redhat.com/errata/RHSA-2026:41947
https://access.redhat.com/errata/RHSA-2026:52399

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