CVE-2026-8034

Katalog CVE

CVSS 9.8 · Critical EPSS 0,86%

Kerentanan Interpretation Conflict pada github enterprise server. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

A server-side request forgery (SSRF) vulnerability was identified in the GitHub Enterprise Server notebook viewer that allowed an attacker to access internal services by exploiting URL parser confusion between the validation layer and the HTTP request library. The hostname validation used a different URL parser than the request library, enabling a crafted URL to pass validation while directing the request to an unintended host. Exploitation required network access to the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.16.18, 3.17.15, 3.18.9, 3.19.6, and 3.20.2. This vulnerability was reported via the GitHub Bug Bounty program.

Rincian

Terbit di NVD

7 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
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-436: Interpretation Conflict
CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,86% peluang dieksploitasi; lebih tinggi dari 57,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.18 release notes · advisory vendor
• https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.15 release notes · advisory vendor
• https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.9 release notes · advisory vendor
• https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.6 release notes · advisory vendor
• https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.2 release notes · advisory vendor