CVE-2026-21881

Katalog CVE

CVSS 9.1 · Critical EPSS 0,49%

Kerentanan Improper Authentication pada kanboard. Skor CVSS 3.1 9.1 (Critical) menurut github.com.

Deskripsi (NVD)

Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below is vulnerable to a critical authentication bypass when REVERSE_PROXY_AUTH is enabled. The application blindly trusts HTTP headers for user authentication without verifying the request originated from a trusted reverse proxy. An attacker can impersonate any user, including administrators, by simply sending a spoofed HTTP header. This issue is fixed in version 1.2.49.

Rincian

Terbit di NVD

8 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.1 (Critical), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/kanboard/kanboard/security/advisories/GHSA-wwpf-3j4p-739w exploit · advisory vendor
• https://github.com/kanboard/kanboard/commit/7af6143e2ad25b5c15549cca8af4341c7ac4e2fc patch
• https://github.com/kanboard/kanboard/releases/tag/v1.2.49 release notes