CVE-2026-6733

Katalog CVE

CVSS 3.7 · Low EPSS 0,27%

Kerentanan Time-of-check Time-of-use (TOCTOU) Race Condition pada nodejs undici. Skor CVSS 3.1 3.7 (Low) menurut CNA.

Deskripsi (NVD)

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it associates the injected response with the new request, causing responses to be delivered to the wrong requests. This requires an attacker-controlled or compromised upstream HTTP/1.1 server and keep-alive connection reuse. Patches: Upgrade to undici v6.26.0, v7.28.0 or v8.5.0. Workarounds: Disable keep-alive connection reuse by setting keepAliveTimeout: 0 on the Client or Pool.

Rincian

Terbit di NVD

17 Juni 2026

Terakhir diubah

27 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 17,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cna.openjsf.org/security-advisories.html advisory vendor
• https://github.com/nodejs/undici/security/advisories/GHSA-35p6-xmwp-9g52 mitigasi · advisory vendor
• https://hackerone.com/reports/3582376 issue tracking