CVE-2026-9546
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Jul 03, 2026
Vendor
unknown
Description
A vulnerability in libcurl caused the HTTP `Referer:` header to persist even when explicitly cleared. While the documentation states that passing NULL to `CURLOPT_REFERER` suppresses the header, the option failed to clear the internal state. As a result the previous referrer string was erroneously reused and sent in subsequent requests, potentially leaking sensitive information to unintended servers.