CVE-2026-11856

Katalog CVE

CVSS 9.8 · Critical EPSS 0,69%

Kerentanan Authentication Bypass by Capture-replay pada haxx curl. Skor CVSS 3.1 9.8 (Critical) menurut CISA ADP.

Deskripsi (NVD)

Successfully using libcurl to do a transfer to a specific HTTP origin (`hostA`) with **Digest** authentication and then changing the origin to a different one (`hostB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Authorization:` header field meant for `hostA`, to `hostB`.

Rincian

Terbit di NVD

3 Juli 2026

Terakhir diubah

15 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-294: Authentication Bypass by Capture-replay

EPSS (30 hari)

0,69% peluang dieksploitasi; lebih tinggi dari 51,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://curl.se/docs/CVE-2026-11856.html patch · advisory vendor
• https://curl.se/docs/CVE-2026-11856.json advisory vendor
• https://hackerone.com/reports/3793260 exploit · issue tracking · advisory pihak ketiga