No exploitation reportedFix available

CVE-2023-23918

Q: Is CVE-2023-23918 actively exploited?

Active exploitation of CVE-2023-23918 has not been confirmed. Its EPSS score was 2.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-23918?

CVE-2023-23918 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:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2023-02-23
Fixed in19.6.1 · 18.14.1 · 16.19.1 · 14.21.3
WeaknessCWE-863

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 privilege escalation vulnerability exists in Node.js <19.6.1, <18.14.1, <16.19.1 and <14.21.3 that made it possible to bypass the experimental Permissions (https://nodejs.org/api/permissions.html) feature in Node.js and access non authorized modules by using process.mainModule.require(). This only affects users who had enabled the experimental permissions option with --experimental-policy.

Timeline

dates in UTC

2023-02-2320:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 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-2023-23918?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-23918?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Node.js

Branch	Affected	Fixed in	Source
19.x	≥ 19.0.0, < 19.6.1	19.6.1	NVD
18.x	≥ 18.0.0, < 18.14.1	18.14.1	NVD
16.x	≥ 16.0.0, < 16.19.1	16.19.1	NVD
14.x	≥ 14.0.0, < 14.21.3	14.21.3	NVD
14.x	≥ 14.0.0, ≤ 14.14.0	no fix published	NVD
16.x	≥ 16.0.0, ≤ 16.12.0	no fix published	NVD
18.x	≥ 18.0.0, ≤ 18.11.0	no fix published	NVD

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

Fix

Update Node.js to 19.6.1 · 18.14.1 · 16.19.1 · 14.21.3

Advisories and patches

nodejs.orgPatch · Vendor Advisory

Detection

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

Sources

CISA-ADPSSVC decisionnone2025-03-12
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.52025-03-12
NVDCVSS 3.17.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-8632025-03-12
NVDweakness (CWE)CWE-863read 2026-10-23
FIRST EPSSEPSS score2.0 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2023-02-23
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-23918?

Is CVE-2023-23918 actively exploited?

Active exploitation of CVE-2023-23918 has not been confirmed. Its EPSS score was 2.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-23918?

CVE-2023-23918 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:H/I:N/A:N.

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