CVE-2026-28807

Katalog CVE

CVSS 7.5 · High EPSS 1,1%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada gleam-wisp wisp. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in gleam-wisp wisp allows arbitrary file read via percent-encoded path traversal. The wisp.serve_static function is vulnerable to path traversal because sanitization runs before percent-decoding. The encoded sequence %2e%2e passes through string.replace unchanged, then uri.percent_decode converts it to .., which the OS resolves as directory traversal when the file is read. An unauthenticated attacker can read any file readable by the application process in a single HTTP request, including application source code, configuration files, secrets, and system files. This issue affects wisp: from 2.1.1 before 2.2.1.

Rincian

Terbit di NVD

10 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 63,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/gleam-wisp/wisp/security/advisories/GHSA-h7cj-j2vv-qw8r exploit · patch · advisory vendor
• https://github.com/gleam-wisp/wisp/commit/161118c431047f7ef1ff7cabfcc38981877fdd93 patch
• https://cna.erlef.org/cves/CVE-2026-28807.html advisory pihak ketiga
• https://osv.dev/vulnerability/EEF-CVE-2026-28807 advisory pihak ketiga