CVE-2026-18730

Katalog CVE

CVSS 7.4 · High EPSS 0,29%

Kerentanan Server-Side Request Forgery (SSRF) pada github enterprise server. Skor CVSS 3.1 7.4 (High) menurut NVD.

Deskripsi (NVD)

A server-side request forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause the Manage API to send crafted outbound requests to an attacker-controlled host. An unauthenticated endpoint parsed an attacker-supplied cluster configuration and issued gateway-to-agent requests whose HMAC authenticated only a timestamp, not the request path or body. An attacker positioned to intercept the outbound request could capture this token and replay it against privileged management agent endpoints. High-availability deployments were not affected due to a topology restriction. This vulnerability affected GitHub Enterprise Server releases in the 3.17, 3.18, 3.19, 3.20, and 3.21 series and was fixed in versions 3.17.21, 3.18.15, 3.19.12, 3.20.8, and 3.21.6. This vulnerability was reported via the GitHub Bug Bounty program.

Rincian

Terbit di NVD

1 September 2026

Terakhir diubah

22 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 20,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.21
• https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.15
• https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.12
• https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.8
• https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.6