CVE-2026-8711

Katalog CVE

CVSS 9.8 · Critical EPSS 0,79%

Kerentanan Heap-based Buffer Overflow pada f5 njs. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

NGINX JavaScript has a vulnerability when the js_fetch_proxy directive is configured with at least one client-controlled NGINX variable (for example, $http_*, $arg_*, $cookie_*) and a location invoking the ngx.fetch() operation from NGINX JavaScript. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Rincian

Terbit di NVD

19 Mei 2026

Terakhir diubah

23 Juli 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow

EPSS (30 hari)

0,79% peluang dieksploitasi; lebih tinggi dari 55,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://my.f5.com/manage/s/article/K000161307 advisory vendor