7.5

CVE-2026-9546

Exploit

sending old referer

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Haxx ≫ Curl Version >= 8.18.0 < 8.21.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.65% 0.469
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://hackerone.com/reports/3754343
Third Party Advisory
Exploit
Issue Tracking
https://curl.se/docs/CVE-2026-9546.html
Patch
Vendor Advisory
https://curl.se/docs/CVE-2026-9546.json
Third Party Advisory