csirt@kutim:~/threat-intel/cve/CVE-2026-67409

Katalog CVE

CVSS 6.5 · Medium EPSS 0,42%

Kerentanan Unchecked Return Value pada broadcom rabbitmq server. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS (CWE-252). the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response status code when downloading signing keys from the OAuth2 provider's JWKS endpoint. Non-200 responses (including 4xx and 5xx errors) are processed identically to successful responses. When the JWKS endpoint returns an error response with a valid-JSON body that lacks a keys field, all previously cached signing keys are destroyed, causing a persistent authentication denial of Files: deps/rabbitmqauthbackendoauth2/src/uaajwt.erl, lines 50-63 deps/rabbitmqauthbackendoauth2/src/uaajwks.erl, lines 5-7 deps/rabbitmqauthbackendoauth2/src/rabbitoauth2provider.erl, lines 98-107 Bug 1: HTTP status code ignored (uaajwt.erl:50-63): The Erlang httpc module returns {ok, {{HttpVersion, StatusCode, ReasonPhrase}, Headers, Body}}. The pattern {ok, {, , JwksBody}} matches ANY successful HTTP transaction Persistent authentication DoS: Once keys are destroyed, ALL OAuth2/JWT authentication fails for all users until a new successful JWKS refresh occurs Amplification: A single attacker can deny access to all legitimate OAuth2 users across the entire RabbitMQ. This issue is fixed in versions 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18.

Rincian

Terbit di NVD
25 September 2026
Terakhir diubah
8 Oktober 2026
Status NVD
Analyzed
CVSS 3.1
6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-252: Unchecked Return Value
EPSS (30 hari)
0,42% peluang dieksploitasi; lebih tinggi dari 34,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
broadcom rabbitmq server Versi 3.13.0 hingga sebelum 3.13.18
broadcom rabbitmq server Versi 4.0.0 hingga sebelum 4.0.23
broadcom rabbitmq server Versi 4.1.0 hingga sebelum 4.1.14
broadcom rabbitmq server Versi 4.2.0 hingga sebelum 4.2.9
broadcom rabbitmq server Versi 4.3.0 hingga sebelum 4.3.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 9 Okt 2026, 06:25 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.