CVE-2026-63177

Katalog CVE

CVSS 7.1 · High EPSS 0,37%

Kerentanan Incorrect Authorization. Skor CVSS 3.1 7.1 (High) menurut hq.dhs.gov.

Deskripsi (NVD)

Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, role-based access control enforced in the Nginx OpenResty Lua layer evaluates the raw, unnormalized `ngx.var.request_uri`, while Nginx itself routes requests using the normalized path. An authenticated low-privilege user can prepend a traversal segment (for example `/x/../upload/...`) so that Nginx routes the request to a restricted backend while the Lua role check fails to match any rule and falls open, granting access it should deny. Version 26.07.0 fixes the issue.

Rincian

Terbit di NVD

11 Agustus 2026

Terakhir diubah

2 Oktober 2026

Status NVD

Awaiting Analysis

CVSS 3.1

7.1 (High), sumber hq.dhs.gov
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-863: Incorrect Authorization

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 28,9% 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/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-230-01.json
• https://github.com/cisagov/Malcolm/releases/tag/v26.07.0
• https://github.com/cisagov/Malcolm/security/advisories/GHSA-m5fr-rv3h-xg2r
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-230-01