CVE-2023-42282Public exploitNetwork attack vector

SSRF bypass via noncanonical IP classification

Published Feb 8, 2024 · Updated May 15, 2025

SSRF in the Node.js ip package before 1.1.9 and 2.0.0 allows remote attackers to reach private hosts via noncanonical IP addresses. The isPublic() path tests raw textual forms without first normalizing hexadecimal and shortened IPv4 input, so 0x7f.1 returns true instead of being recognized as loopback. Exploitation requires a consuming application to pass attacker-controlled addresses to this check before issuing requests, exposing only resources reachable by that application.

CVSS severity9.8
Critical
EPSS probability1.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the Node.js ip package before 1.1.9 and 2.0.0 allows remote attackers to reach private hosts via noncanonical IP addresses. The isPublic() path tests raw textual forms without first normalizing hexadecimal and shortened IPv4 input, so 0x7f.1 returns true instead of being recognized as loopback. Exploitation requires a consuming application to pass attacker-controlled addresses to this check before issuing requests, exposing only resources reachable by that application.

The record

CVE
CVE-2023-42282
Published
Feb 8, 2024
Updated
May 15, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 8, 2024CVE publishedPublication date reported by the CVE source.
  2. May 15, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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