CVE-2026-27641

Katalog CVE

CVSS 9.8 · Critical EPSS 1,2%

Kerentanan Improper Neutralization of Special Elements Used in a Template Engine pada jugmac00 flask-reuploaded. Skor CVSS 3.1 9.8 (Critical) menurut github.com.

Deskripsi (NVD)

Flask-Reuploaded provides file uploads for Flask. A critical path traversal and extension bypass vulnerability in versions prior to 1.5.0 allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI). Flask-Reuploaded has been patched in version 1.5.0. Some workarounds are available. Do not pass user input to the `name` parameter, use auto-generated filenames only, and implement strict input validation if `name` must be used.

Rincian

Terbit di NVD

25 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 68,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/jugmac00/flask-reuploaded/security/advisories/GHSA-65mp-fq8v-56jr exploit · advisory vendor
• https://github.com/jugmac00/flask-reuploaded/commit/d64c6b2f71cb73734fc38baa0e3e156926361288 patch
• https://github.com/jugmac00/flask-reuploaded/pull/180 issue tracking · patch