CVE-2026-82209

Katalog CVE

CVSS 8.2 · High EPSS 0,37%

Kerentanan Insertion of Sensitive Information Into Sent Data pada haxx curl. Skor CVSS 3.1 8.2 (High) menurut CISA ADP.

Deskripsi (NVD)

When libpsl support is enabled, libcurl fails to enforce the Public Suffix List boundary check when processing a `Set-Cookie` header where the `Domain` attribute explicitly matches an origin host that is itself a public suffix (e.g., `Domain=co.uk` set by `co.uk`). Instead of coercing it into a strict host-only cookie, libcurl saves the cookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is inappropriately included in subsequent outbound requests or HTTP redirects to arbitrary sibling subdomains under the same public suffix (e.g., `attacker.co.uk`).

Rincian

Terbit di NVD

6 September 2026

Terakhir diubah

15 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-201: Insertion of Sensitive Information Into Sent Data

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 29,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://curl.se/docs/CVE-2026-82209.html patch · advisory vendor
• https://curl.se/docs/CVE-2026-82209.json advisory vendor
• https://hackerone.com/reports/3972385 exploit · mitigasi · advisory pihak ketiga