CVE-2018-20744

MediumCVSS 5.9/10Last modified Jun 17, 2026

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

CVSS 3.0 5.9/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-346

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

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
NVD status: Modified

Related CVEs from 2018

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