CVE-2018-12123
Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a…
Does this matter?
Lower severity and a low EPSS score (4.03%). Track it; it rarely justifies an emergency change on its own.
Description
Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Hostname spoofing in URL parser for javascript protocol: If a Node.js application is using url.parse() to determine the URL hostname, that hostname can be spoofed by using a mixed case "javascript:" (e.g. "javAscript:") protocol (other protocols are not affected). If security decisions are made about the URL based on the hostname, they may be incorrect.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 4.03% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-115, CWE-20
- Affected
- nodejs/node.js
- Source
- cve-request@iojs.org
EPSS 4.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/errata/RHSA-2019:1821Third Party Advisory
- https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Patch, Vendor Advisory
- https://security.gentoo.org/glsa/202003-48Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1821Third Party Advisory
- https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Patch, Vendor Advisory
- https://security.gentoo.org/glsa/202003-48Third Party Advisory
- https://security.netapp.com/advisory/ntap-20241213-0008/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.