CVE-2026-9545

Katalog CVE

CVSS 7.5 · High EPSS 0,41%

Kerentanan Exposure of Sensitive Information to an Unauthorized Actor pada haxx curl. Skor CVSS 3.1 7.5 (High) menurut CISA ADP.

Deskripsi (NVD)

In this scenario, libcurl first uses a proper HTTP/3 server for the initial transfers, and when it makes a second transfer to the same site it has been replaced by the attacker's impostor machine - without a valid certificate. When libcurl returns to the hostname the second time with a cached SSL session (`CURLOPT_SSL_SESSIONID_CACHE` is not disabled) and early data enabled (the `CURLSSLOPT_EARLYDATA` bit is set in `CURLOPT_SSL_OPTIONS`), libcurl might send off the second request's bytes on that new connection *before* enforcing the certificate verification failure. Potentially leaking sensitive information.

Rincian

Terbit di NVD

3 Juli 2026

Terakhir diubah

15 September 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://curl.se/docs/CVE-2026-9545.html patch · advisory vendor
• https://curl.se/docs/CVE-2026-9545.json advisory vendor
• https://hackerone.com/reports/3752888 exploit · issue tracking · advisory pihak ketiga