CVE-2026-33054

Katalog CVE

CVSS 9.8 · Critical EPSS 0,70%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada mesop-dev mesop. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Mesop is a Python-based UI framework that allows users to build web applications. Versions 1.2.2 and below contain a Path Traversal vulnerability that allows any user supplying an untrusted state_token through the UI stream payload to arbitrarily target files on the disk under the standard file-based runtime backend. This can result in application denial of service (via crash loops when reading non-msgpack target files as configurations), or arbitrary file manipulation. This vulnerability heavily exposes systems hosted utilizing FileStateSessionBackend. Unauthorized malicious actors could interact with arbitrary payloads overwriting or explicitly removing underlying service resources natively outside the application bounds. This issue has been fixed in version 1.2.3.

Rincian

Terbit di NVD

20 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber NVD
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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,70% peluang dieksploitasi; lebih tinggi dari 52,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/mesop-dev/mesop/security/advisories/GHSA-8qvf-mr4w-9x2c exploit · advisory vendor
• https://github.com/mesop-dev/mesop/commit/c6b382f363b73ac32c402a2db3aadc7784f66a5b patch
• https://github.com/mesop-dev/mesop/releases/tag/v1.2.3 release notes