How severe is CVE-2023-30581?

CVE-2023-30581 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-30581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30581?

CVE-2023-30581 affects Nodejs Node.js. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-30581?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-30581 published?

CVE-2023-30581 was published on 2023-11-23 and last updated on 2026-06-17.

CVE-2023-30581

CVE-2023-30581 is a high-severity vulnerability in Nodejs Node.js with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Nodejs Node.js
Published: 2023-11-23
Last modified: 2026-06-17

Description

The use of __proto__ in process.mainModule.__proto__.require() can bypass the policy mechanism and require modules outside of the policy.json definition. This vulnerability affects all users using the experimental policy mechanism in all active release lines: v16, v18 and, v20. Please note that at the time this CVE was issued, the policy is an experimental feature of Node.js

Frequently asked questions

What is CVE-2023-30581?: The use of __proto__ in process.mainModule.__proto__.require() can bypass the policy mechanism and require modules outside of the policy.json definition. This vulnerability affects all users using the experimental policy mechanism in all active release lines: v16, v18 and, v20. Please note that at the time this CVE was issued, the policy is an experimental feature of Node.js
How severe is CVE-2023-30581?: CVE-2023-30581 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-30581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30581?: CVE-2023-30581 affects Nodejs Node.js. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-30581?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-30581 published?: CVE-2023-30581 was published on 2023-11-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*

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