CVE-2018-20744

Name: CVE-2018-20744
Creator: NVD / NIST
Published: 2019-01-28T08:29:00.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.72%

Last modified Jun 17, 2026

CVE-2018-20744 is a vulnerability of currently unknown severity. The Olivier Poitrey Go CORS handler through 1.3.0 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

The Olivier Poitrey Go CORS handler through 1.3.0 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.

Metrics

EPSS Probability

0.72%

49.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-346

Affected Software

Vendor	Product	Versions
Go Cors Project	Go Cors	<= 1.3.0

References

http://www.securityfocus.com/bid/106834Third Party Advisory
https://github.com/rs/cors/issues/55Issue Tracking, Third Party Advisory
https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-chen.pdfThird Party Advisory
http://www.securityfocus.com/bid/106834Third Party Advisory
https://github.com/rs/cors/issues/55Issue Tracking, Third Party Advisory
https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-chen.pdfThird Party Advisory

Timeline

Published: Jan 28, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20744?

How severe is CVE-2018-20744?

Severity scoring for CVE-2018-20744 is pending analysis. The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20744?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20744?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST