7.5

CVE-2023-30587: nodejs node Improper Access Control

Deferred
AliasesCGA-ph5x-wmm3-g7rmCGA-xqr9-9587-hfpp
Published 07-09-2024Last modified 30-04-2025

Vulnerability summary

CVE-2023-30587 is a high (CVSS 7.5) Improper Access Control vulnerability in nodejs node. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 04-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.75%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 3
MGASA-2023-0226OPENSUSE-SU-2024:13021-1CGA-FJFW-XH9R-H88HCGA-PW86-2M82-792J

Timeline

  1. 07-09-2024
    PublishedVulnerability first disclosed.
  2. 30-04-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability in Node.js version 20 allows for bypassing restrictions set by the --experimental-permission flag using the built-in inspector module (node:inspector). By exploiting the Worker class's ability to create an "internal worker" with the kIsInternal Symbol, attackers can modify the isInternal value when an inspector is attached within the Worker constructor before initializing a new WorkerImpl. This vulnerability exclusively affects Node.js users employing the permission model mechanism. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.75%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.75% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard1 product
  • nodejs-20< 20.3.1-r0
Nodejs1 product
  • node≥ 4.0, < 4.* | ≥ 5.0, < 5.* | ≥ 6.0, < 6.* | ≥ 7.0, < 7.* | ≥ 8.0, < 8.* | ≥ 9.0, < 9.* | ≥ 10.0, < 10.* | ≥ 11.0, < 11.* | ≥ 12.0, < 12.* | ≥ 13.0, < 13.* | ≥ 14.0, < 14.* | ≥ 15.0, < 15.* | ≥ 17.0, < 17.* | ≥ 19.0, < 19.* | ≥ 20.0, < 20.3.1
Wolfi1 product
  • nodejs-20< 20.3.1-r0

3 vendors · 3 products

References

2 links