CVE-2017-20146

Improper access control in github.com/gorilla/handlers

Description

Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory go.dev
Affected: github.com/gorilla/handlers github.com/gorilla/handlers
Published at:
Updated at:

References

Link Tags
https://github.com/gorilla/handlers/pull/116 third party advisory patch
https://github.com/gorilla/handlers/commit/90663712d74cb411cbef281bc1e08c19d1a76145 third party advisory patch
https://pkg.go.dev/vuln/GO-2020-0020 third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-20146?
CVE-2017-20146 has been scored as a critical severity vulnerability.
How to fix CVE-2017-20146?
To fix CVE-2017-20146, 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-2017-20146 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-20146 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-2017-20146?
CVE-2017-20146 affects github.com/gorilla/handlers github.com/gorilla/handlers.
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