CVE-2026-1355

Katalog CVE

CVSS 6.5 · Medium EPSS 0,41%

Kerentanan Missing Authorization pada github enterprise server. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

A Missing Authorization vulnerability was identified in GitHub Enterprise Server that allowed an attacker to upload unauthorized content to another user’s repository migration export due to a missing authorization check in the repository migration upload endpoint. By supplying the migration identifier, an attacker could overwrite or replace a victim’s migration archive, potentially causing victims to download attacker-controlled repository data during migration restores or automated imports. An attacker would require authentication to the victim's GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.19.2, 3.18.5, 3.17.11, 3.16.14, 3.15.18, 3.14.23. This vulnerability was reported via the GitHub Bug Bounty program.

Rincian

Terbit di NVD

18 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-862: Missing Authorization

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.23 product · release notes
• https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.18 product · release notes
• https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.14 product · release notes
• https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.11 product · release notes
• https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.5 product · release notes
• https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.2 product · release notes