csirt@kutim:~/threat-intel/cve/CVE-2026-55568

Katalog CVE

CVSS 5.9 · Medium EPSS 0,15%

Kerentanan Missing Encryption of Sensitive Data pada guzzlephp guzzle. Skor CVSS 3.1 5.9 (Medium) menurut github.com.

Deskripsi (NVD)

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, in certain configurations, traffic expected to be protected by TLS on the hop to the proxy is transmitted in cleartext. Proxy authentication credentials (the Proxy-Authorization header, proxy userinfo in the proxy URL, or CURLOPT_PROXYUSERPWD) are sent without encryption, and the CONNECT target host and port for tunneled HTTPS requests are exposed. The built-in cURL handlers (GuzzleHttp\Handler\CurlHandler and GuzzleHttp\Handler\CurlMultiHandler, used by default whenever the PHP cURL extension is available) accept an https:// proxy. libcurl older than 7.50.2 silently treats an https:// proxy as a plaintext http:// proxy. The TLS connection to the proxy is never established, and the proxy leg is cleartext with no error or warning. An application is affected when it sends requests through one of the built-in cURL handlers, configures an https:// proxy expecting the proxy connection itself to be encrypted, and runs with libcurl older than 7.50.2. This vulnerability is fixed in 7.12.1.

Rincian

Terbit di NVD
23 Juni 2026
Terakhir diubah
26 Juni 2026
Status NVD
Analyzed
CVSS 3.1
5.9 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-311: Missing Encryption of Sensitive Data
CWE-319: Cleartext Transmission of Sensitive Information
CWE-636: Not Failing Securely ('Failing Open')
EPSS (30 hari)
0,15% peluang dieksploitasi; lebih tinggi dari 3,5% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
guzzlephp guzzle Semua versi sebelum 7.12.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.