csirt@kutim:~/threat-intel/cve/CVE-2026-56434

Katalog CVE

CVSS 6.5 · Medium EPSS 0,42%

Kerentanan Use After Free pada f5 nginx gateway fabric, f5 nginx ingress controller +2 lainnya. Skor CVSS 3.1 6.5 (Medium) menurut f5.com.

Deskripsi (NVD)

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process. Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Rincian

Terbit di NVD
15 Juli 2026
Terakhir diubah
10 Agustus 2026
Status NVD
Analyzed
CVSS 3.1
6.5 (Medium), sumber f5.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-416: Use After Free
EPSS (30 hari)
0,42% peluang dieksploitasi; lebih tinggi dari 34,4% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
f5 nginx gateway fabric Versi 1.3.0 hingga 1.6.2
f5 nginx gateway fabric Versi 2.0.0 hingga sebelum 2.6.7
f5 nginx ingress controller Versi 3.5.0 hingga 3.7.2
f5 nginx ingress controller Versi 5.0.0 hingga sebelum 5.5.3
f5 nginx ingress controller Versi 2026-lts-r1 hingga sebelum 2026-lts-r4
f5 nginx ingress controller Versi 4.0.0
f5 nginx ingress controller Versi 4.0.1
f5 nginx plus Versi 37.0.0.1 hingga sebelum 37.0.3.1
f5 nginx plus Versi r33 hingga sebelum r36
f5 nginx plus Versi r36
f5 nginx plus Versi r36 p1
f5 nginx plus Versi r36 p2
f5 nginx plus Versi r36 p3
f5 nginx plus Versi r36 p4
f5 nginx plus Versi r36 p5
f5 nginx plus Versi r36 p6
f5 waf Versi 4.11.0 hingga 4.16.0
f5 waf Versi 5.2.0 hingga 5.8.0
f5 waf Versi 5.9.0 hingga sebelum 5.13.4

> 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.