CVE-2021-33197

Public Exploit

Description

In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.02%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://groups.google.com/g/golang-announce third party advisory
https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI patch third party advisory exploit
https://security.gentoo.org/glsa/202208-02 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-33197?
CVE-2021-33197 has been scored as a medium severity vulnerability.
How to fix CVE-2021-33197?
To fix CVE-2021-33197, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33197 being actively exploited in the wild?
It is possible that CVE-2021-33197 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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