CVE-2018-3774
CVE-2018-3774 is a critical-severity vulnerability in Url-parse Project Url-parse with a CVSS 3.x base score of 10.0. 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-601.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- CVSS v2: 7.5
- EPSS exploit prediction: 4% (89th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Url-parse Project Url-parse
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2018-3774?
- Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open Redirect, Bypass Authentication Protocol.
- How severe is CVE-2018-3774?
- CVE-2018-3774 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-3774 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-3774?
- CVE-2018-3774 affects Url-parse Project Url-parse. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-3774?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-3774 published?
- CVE-2018-3774 was published on 2018-08-12 and last updated on 2026-06-17.
References
- https://github.com/unshiftio/url-parse/commit/53b1794e54d0711ceb52505e0f74145270570d5a
- https://github.com/unshiftio/url-parse/commit/d7b582ec1243e8024e60ac0b62d2569c939ef5de
- https://hackerone.com/reports/384029
Affected products (1)
- cpe:2.3:o:url-parse_project:url-parse:*:*:*:*:*:*:*:*
More vulnerabilities in Url-parse Project Url-parse
- CVE-2022-0691 — Critical (CVSS 9.8): Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.9.
- CVE-2022-0686 — Critical (CVSS 9.1): Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.8.
- CVE-2022-0639 — Medium (CVSS 5.3): Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.7.
- CVE-2022-0512 — Medium (CVSS 5.3): Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.6.
- CVE-2021-3664 — Medium (CVSS 5.3): url-parse is vulnerable to URL Redirection to Untrusted Site
- CVE-2021-27515 — Medium (CVSS 5.3): url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.
All CVEs affecting Url-parse Project Url-parse →
Other CWE-601 (Open Redirect) vulnerabilities
- CVE-2019-25282 — Critical (CVSS 9.8): V-SOL GPON/EPON OLT Platform v2.03 contains an open redirect vulnerability in the script that allows attackers to…
- CVE-2020-36912 — Critical (CVSS 9.8): Plexus anblick Digital Signage Management 3.1.13 contains an open redirect vulnerability in the 'PantallaLogin' script…
- CVE-2025-43526 — Critical (CVSS 9.8): This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac…
- CVE-2025-55031 — Critical (CVSS 9.8): Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An…
- CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.
- CVE-2022-31657 — Critical (CVSS 9.8): VMware Workspace ONE Access and Identity Manager contain a URL injection vulnerability. A malicious actor with network…