CVE-2020-36564

Improper input validation in github.com/justinas/nosurf

Description

Due to improper validation of caller input, validation is silently disabled if the provided expected token is malformed, causing any user supplied token to be considered valid.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory go.dev
Affected: github.com/justinas/nosurf github.com/justinas/nosurf
Published at:
Updated at:

References

Link Tags
https://github.com/justinas/nosurf/pull/60 third party advisory patch
https://github.com/justinas/nosurf/commit/4d86df7a4affa1fa50ab39fb09aac56c3ce9c314 third party advisory patch
https://pkg.go.dev/vuln/GO-2020-0049 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-36564?
CVE-2020-36564 has been scored as a high severity vulnerability.
How to fix CVE-2020-36564?
To fix CVE-2020-36564, 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-2020-36564 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-36564 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-36564?
CVE-2020-36564 affects github.com/justinas/nosurf github.com/justinas/nosurf.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.