| Name | CVE-2026-48933 |
| 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**. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nodejs (PTS) | bullseye | 12.22.12~dfsg-1~deb11u4 | fixed |
| bullseye (security) | 12.22.12~dfsg-1~deb11u8 | fixed |
| bookworm, bookworm (security) | 18.20.4+dfsg-1~deb12u2 | vulnerable |
| trixie (security), trixie | 20.19.2+dfsg-1+deb13u2 | vulnerable |
| forky, sid | 24.19.0+dfsg+~cs24.13.3-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nodejs | source | bullseye | (not affected) | | | |
| nodejs | source | (unstable) | 24.17.0+dfsg+~cs24.13.2-1 | | | |
Notes
[bullseye] - nodejs <not-affected> (WebCrypto (SubtleCrypto) introduced in Node 15; not present)
https://nodejs.org/en/blog/vulnerability/june-2026-security-releases#nodejs-webcrypto-aes-integer-overflow-leads-to-remote-process-abort-dos-cve-2026-48933---high
https://github.com/nodejs/node/commit/38b4c5ed51b2ec81c28fbd379fea72e22fa12a15 (v22.23.0)