CVE-2023-45289
MEDIUM
Published Mar 5, 2024
Modified Apr 15, 2026
Description
When following an HTTP redirect to a domain which is not a subdomain match or exact match of the initial domain, an http.Client does not forward sensitive headers such as "Authorization" or "Cookie". For example, a redirect from foo.com to www.foo.com will forward the Authorization header, but a redirect to bar.com will not. A maliciously crafted HTTP redirect could cause sensitive headers to be unexpectedly forwarded.
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CVSS v3.1 Score
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
Other References
http://www.openwall.com/lists/oss-security/2024/03/08/4
https://go.dev/cl/569340
https://go.dev/issue/65065
https://groups.google.com/g/golang-announce/c/5pwGVUPoMbg
https://pkg.go.dev/vuln/GO-2024-2600
https://security.netapp.com/advisory/ntap-20240329-0006/
http://www.openwall.com/lists/oss-security/2024/03/08/4
https://go.dev/cl/569340
https://go.dev/issue/65065
https://groups.google.com/g/golang-announce/c/5pwGVUPoMbg
Frequently Asked Questions
What is CVE-2023-45289? +
When following an HTTP redirect to a domain which is not a subdomain match or exact match of the initial domain, an http.Client does not forward sensitive headers such as "Authorization" or "Cookie". For example, a redirect from foo.com to www.foo.com will forward the Authorization header, but a redirect to bar.com will not. A maliciously crafted HTTP redirect could cause sensitive headers to be unexpectedly forwarded. It has a CVSS v3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2023-45289? +
CVE-2023-45289 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
How do I check if I'm vulnerable to CVE-2023-45289? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.