CVE-2026-33490

Katalog CVE

CVSS 5.3 · Medium EPSS 0,28%

Kerentanan Use of Incorrectly-Resolved Name or Reference pada h3. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

H3 is a minimal H(TTP) framework. In versions 2.0.0-0 through 2.0.1-rc.16, the `mount()` method in h3 uses a simple `startsWith()` check to determine whether incoming requests fall under a mounted sub-application's path prefix. Because this check does not verify a path segment boundary (i.e., that the next character after the base is `/` or end-of-string), middleware registered on a mount like `/admin` will also execute for unrelated routes such as `/admin-public`, `/administrator`, or `/adminstuff`. This allows an attacker to trigger context-setting middleware on paths it was never intended to cover, potentially polluting request context with unintended privilege flags. Version 2.0.2-rc.17 contains a patch.

Rincian

Terbit di NVD

26 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-706: Use of Incorrectly-Resolved Name or Reference

EPSS (30 hari)

0,28% peluang dieksploitasi; lebih tinggi dari 19,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/h3js/h3/security/advisories/GHSA-2j6q-whv2-gh6w exploit · mitigasi · advisory vendor