No exploitation reportedFix available

CVE-2026-48933

Q: Is CVE-2026-48933 actively exploited?

Active exploitation of CVE-2026-48933 has not been confirmed. Its EPSS score was 3.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-48933?

CVE-2026-48933 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2026-06-26
WeaknessCWE-190 · CWE-770

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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**.

Timeline

dates in UTC

2026-06-2602:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-48933?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-48933?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Node.js

Branch	Affected	Fixed in	Source
22.22	= 22.22.3	no fix published	NVD
24.16	= 24.16.0	no fix published	NVD
26.3	= 26.3.0	no fix published	NVD

node

Branch	Affected	Fixed in	Source
26.3	≥ 26.3.0, < 26.3.1	26.3.1	OSV
24.x	≥ 24.16.0, < 24.17.0	24.17.0	OSV
22.x	≥ 22.22.3, < 22.23.0	22.23.0	OSV

node-min

Branch	Affected	Fixed in	Source
26.3	≥ 26.3.0, < 26.3.1	26.3.1	OSV
24.x	≥ 24.16.0, < 24.17.0	24.17.0	OSV
22.x	≥ 22.22.3, < 22.23.0	22.23.0	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

nodejsAlmaLinux:10all versions · fixed in 1:22.23.1-2.el10_2and 4 other packages
nodejsAlmaLinux:9all versions · fixed in 1:22.23.1-1.module_el9.8.0+276+8b329b47and 4 other packages
nodejsAlmaLinux:9all versions · fixed in 1:24.18.0-1.module_el9.8.0+277+61fc613eand 4 other packages
nodejsAlmaLinux:8all versions · fixed in 1:22.23.1-1.module_el8.10.0+4231+1bf2f855and 4 other packages
nodejsAlmaLinux:8all versions · fixed in 1:24.18.0-1.module_el8.10.0+4228+2938bc94and 4 other packages
nodejs-nodemonAlmaLinux:9all versions · fixed in 3.0.1-1.module_el9.7.0+208+fb06c0ab
nodejs-nodemonAlmaLinux:9all versions · fixed in 3.0.3-3.module_el9.7.0+209+ecf6523e
nodejs-nodemonAlmaLinux:8all versions · fixed in 3.0.1-1.module_el8.10.0+3956+47c9ee9f

16 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

nodejs.orgPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2026-06-26
OpenCVESSVC decisionnone—
CNACVSS 3.17.5read 2026-10-23
CNACVSS 3.07.5read 2026-10-23
CNAweakness (CWE)CWE-190, CWE-770read 2026-10-23
FIRST EPSSEPSS score3.7 %2026-10-22
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2026-06-26
Last Modified: 2026-08-10
NVD status: Modified

Frequently asked questions

What is CVE-2026-48933?

Is CVE-2026-48933 actively exploited?

Active exploitation of CVE-2026-48933 has not been confirmed. Its EPSS score was 3.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-48933?

CVE-2026-48933 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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