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CRITICAL

CVE-2019-14809

CVSS v3

9.8

CRITICAL

EPSS Score

2.6 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

Technical details

Published
2019-08-13

Frequently asked questions

What is CVE-2019-14809?

net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

Is CVE-2019-14809 actively exploited?

Active exploitation of CVE-2019-14809 has not been confirmed. The EPSS score is 2.6%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-14809?

CVE-2019-14809 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2019-14809 affecting your environment?

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