CVE-2026-9086

Katalog CVE

CVSS 7.3 · High EPSS 0,78%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada redhat build of keycloak. Skor CVSS 3.1 7.3 (High) menurut redhat.com.

Deskripsi (NVD)

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with `manage-client` permission or access to client registration endpoints, could bypass client Uniform Resource Identifier (URI) validation. This is achieved by registering a malicious client with a specially crafted redirect URI using a case-insensitive `javascript:` or `data:` scheme. This Cross-Site Scripting (XSS) vulnerability allows for arbitrary code execution in the Keycloak origin when a victim clicks the crafted link, such as in the logout flow or the Admin Console.

Rincian

Terbit di NVD

25 Juni 2026

Terakhir diubah

15 Juli 2026

Status NVD

Analyzed

CVSS 3.1

7.3 (High), sumber redhat.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

0,78% peluang dieksploitasi; lebih tinggi dari 54,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/errata/RHSA-2026:30049 advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:30050 advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:30083 advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:30084 advisory pihak ketiga
• https://access.redhat.com/security/cve/CVE-2026-9086 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2480170 advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9086.json advisory pihak ketiga