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CVE-2023-30581

The use of __proto__ in process.mainModule.__proto__.require() can bypass the policy mechanism and require modules outside of the…

High7.5EPSS 1.1%
Published
Updated
Reserved
Assigned by
hackerone

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

Timeline

  1. ID reserved

    By hackerone

  2. · 7 months later

    Published

  3. · 24 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-30581, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS (exploitation in 30 days)
1.1% · top 36% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • NodeJS · Node

    • affected 4.0 – < 4.*
    • affected 5.0 – < 5.*
    • affected 6.0 – < 6.*
    • affected 7.0 – < 7.*
    • affected 8.0 – < 8.*
    • affected 9.0 – < 9.*
    • affected 10.0 – < 10.*
    • affected 11.0 – < 11.*
    • affected 12.0 – < 12.*
    • affected 13.0 – < 13.*
    • affected 14.0 – < 14.*
    • affected 15.0 – < 15.*
    • affected 16.0 – < 16.20.1
    • affected 17.0 – < 17.*
    • affected 18.0 – < 18.16.1
    • affected 19.0 – < 19.*
    • affected 20.0 – < 20.3.1

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .