csirt@kutim:~/threat-intel/cve/CVE-2026-21621

Katalog CVE

CVSS 5.3 · Medium EPSS 0,34%

Kerentanan Incorrect Authorization pada hexpm. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

Incorrect Authorization vulnerability in hexpm hexpm/hexpm ('Elixir.HexpmWeb.API.OAuthController' module) allows Privilege Escalation. An API key created with read-only permissions (domain: "api", resource: "read") can be escalated to full write access under specific conditions. When exchanging a read-only API key via the OAuth client_credentials grant, the resource qualifier is ignored. The resulting JWT receives the broad "api" scope instead of the expected "api:read" scope. This token is therefore treated as having full API access. If an attacker is able to obtain a victim's read-only API key and a valid 2FA (TOTP) code for the victim account, they can use the incorrectly scoped JWT to create a new full-access API key with unrestricted API permissions that does not expire by default and can perform write operations such as publishing, retiring, or modifying packages. This vulnerability is associated with program files lib/hexpm_web/controllers/api/oauth_controller.ex and program routines 'Elixir.HexpmWeb.API.OAuthController':validate_scopes_against_key/2. This issue affects hexpm: from 71829cb6f6559bcceb1ef4e43a2fb8cdd3af654b before 71c127afebb7ed7cc637eb231b98feb802d62999.

Rincian

Terbit di NVD
5 Maret 2026
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-863: Incorrect Authorization
EPSS (30 hari)
0,34% peluang dieksploitasi; lebih tinggi dari 25,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
hex hexpm Versi 2025-10-17 hingga sebelum 2026-03-05

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.