CVE-2020-24553
golang: default Content-Type setting in net/http/cgi and net/http/fcgi could cause XSS
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 1, 2020
Updated · November 1, 2026
Description
A flaw was found in the Go standard library packages before upstream versions 1.15 and 1.14.8. Both the net/http/cgi and net/http/fcgi packages use a default Content-Type response header value of "text/html", rather than "text/plain". This flaw allows an attacker to exploit this issue in applications using these packages by uploading crafted files, allowing a Cross-site Scripting attack (XSS). The highest threat from this vulnerability is to confidentiality and integrity.
Statement
Multiple components in the Red Hat OpenShift Container Platform are built with Go and use net/http, however, none include the specific vulnerable packages net/http/cgi and net/http/fcgi. Red Hat OpenShift Container Platform is not affected by this flaw.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE-79 · Improper Neutralization of Input During Web Page Generation