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CVE-2018-3774

32
FAUCET Score

CVE-2018-3774 is a critical vulnerability affecting url-parse versions prior to 1.4.3, stemming from incorrect URL parsing that can lead to an erroneous hostname. This flaw enables severe attacks such as Server-Side Request Forgery (SSRF), Open Redirect, and authentication bypass. With a CVSS score of 10.0 (CRITICAL), it is easily exploitable over the network with low attack complexity, potentially resulting in complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, its high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.3CPE matchmatch criteria
cpe:2.3:o:url-parse_project:url-parse:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

10.0CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.81%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0381 is in the 82nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

npmpatch availablevia ghsa
Product: url-parseFixed in: 1.4.3
redhatpatch availablevia redhat_api
Product: Red Hat Quay 3Fixed in: quay/quay-rhel8:v3.6.0-62
View patch
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

npmGHSA-pv4c-p2j5-38j4critical

Open Redirect in url-parse

Aug 13, 2018
redhatCVE-2018-3774Important

nodejs-url-parse: incorrect hostname in url parsing

Jul 30, 2018

References

github.com / unshiftio/url-parse/commit/53b1794e54d0711ceb52505e0f74145270570d5a
Vendor Advisory
github.com / unshiftio/url-parse/commit/d7b582ec1243e8024e60ac0b62d2569c939ef5de
Vendor Advisory
hackerone.com / reports/384029
Issue TrackingThird Party Advisory