CVE-2026-9546

CVE-2026-9546 is a libcurl vulnerability where the HTTP Referer header persists after CURLOPT_REFERER is cleared, due to an internal state not being cleared. Affected versions are prior to 8.21.0 (e.g., 8.18.0). This can cause leakage of the previous referrer to subsequent requests. The practical...

CVE-2026-9079

libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not know nor use them...