CVE-2026-52891

Katalog CVE

CVSS 9.9 · Critical EPSS 0,78%

Kerentanan Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'). Skor CVSS 3.1 9.9 (Critical) menurut github.com.

Deskripsi (NVD)

Wekan is open source kanban built with Meteor. Prior to 9.07, Wekan avatar upload functionality embeds user-supplied filenames into paths later passed to child_process.exec() for MIME-type detection. Because models/avatars.js and models/fileValidation.js used a shell command with the avatar filename, shell metacharacters such as backticks and $() in the filename could execute commands on the server. This issue is fixed in version 9.07.

Rincian

Terbit di NVD

15 Juli 2026

Terakhir diubah

17 Juli 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

EPSS (30 hari)

0,78% peluang dieksploitasi; lebih tinggi dari 54,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/wekan/wekan/commit/a4c74a5980e9f778eb444fd346f32aa3d16786a9
• https://github.com/wekan/wekan/releases/tag/v9.07
• https://github.com/wekan/wekan/security/advisories/GHSA-35j7-h385-2q9g