HOMEVULNERABILITIESCVE-2018-3774
CRITICAL

CVE-2018-3774

CWE-425Published: August 12, 2018· Updated: Jun 17, 2026

10.0
CVSS v3.1

Official Description

Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open Redirect, Bypass Authentication Protocol.

NVD Source

Technical Analysis

CVE-2018-3774 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected Vendors & Products

url-parse_project1 product(s)
url-parse
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/unshiftio/url-parse/commit/53b1794e54d0711ceb52505e0f74145270570d5a
ADVISORYhttps://github.com/unshiftio/url-parse/commit/d7b582ec1243e8024e60ac0b62d2569c939ef5de
ADVISORYhttps://hackerone.com/reports/384029
ADVISORYhttps://github.com/unshiftio/url-parse/commit/53b1794e54d0711ceb52505e0f74145270570d5a
ADVISORYhttps://github.com/unshiftio/url-parse/commit/d7b582ec1243e8024e60ac0b62d2569c939ef5de
ADVISORYhttps://hackerone.com/reports/384029

All References (6)

→
https://github.com/unshiftio/url-parse/commit/53b1794e54d0711ceb52505e0f74145270570d5aVendor Advisory
→
https://github.com/unshiftio/url-parse/commit/d7b582ec1243e8024e60ac0b62d2569c939ef5deVendor Advisory
→
https://hackerone.com/reports/384029Issue Tracking · Third Party Advisory
→
https://github.com/unshiftio/url-parse/commit/53b1794e54d0711ceb52505e0f74145270570d5aVendor Advisory
→
https://github.com/unshiftio/url-parse/commit/d7b582ec1243e8024e60ac0b62d2569c939ef5deVendor Advisory
→
https://hackerone.com/reports/384029Issue Tracking · Third Party Advisory

Quick Facts

CVE IDCVE-2018-3774
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-425
CISA KEVNo
Affected1 vendor(s)
PublishedAug 12, 2018

Related CVEs (CWE-425)

CVE-2019-12768
9.8
CVE-2022-45276
9.8
CVE-2018-6624
9.8
CVE-2025-26689
9.8
CVE-2022-26279
9.8
CVE-2023-1699
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-3774 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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