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8.1Yüksek

CVE-2026-9256NGINX ngx_http_rewrite_module vulnerability

F5 NGINX Plus; F5 NGINX Open Source; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8 Yayım: (5 ay önce)

Açıklama

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when a rewrite directive uses a regex pattern with distinct, overlapping Perl-Compatible Regular Expression (PCRE) captures (for example, ^/((.*))$) and a replacement string that references multiple such captures (for example, $1$2) in a redirect or arguments context. An unauthenticated attacker along with conditions beyond their control 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.

Zayıflık türü (CWE): CWE-122

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
debian debian linux 11.0
discovery 2 —
f5 dos 4.3.0 – ≤ 4.7.0
f5 nginx gateway fabric 1.3.0 – ≤ 1.6.2
f5 nginx ingress controller 3.5.0 – ≤ 3.7.2
f5 nginx instance manager 2.17.0 – < 2.22.1
F5 NGINX Open Source 1.31.0 – < 1.31.1, 1.30.0 – < 1.30.2, 0.1.17 – ≤ 0.9.7
F5 NGINX Plus 37.0 – < 37.0.1.1, R36 – < R36 P5, R32 – < R32 P7
f5 waf 4.10.0 – ≤ 4.16.0
redhat discovery —
redhat enterprise linux 8.0
redhat hardened images —
Red Hat Red Hat Discovery 2 all versions
Red Hat Red Hat Enterprise Linux 10 all versions
Red Hat Red Hat Enterprise Linux 8 all versions
Red Hat Red Hat Enterprise Linux 9 all versions
Red Hat Red Hat Hardened Images all versions
Red Hat Red Hat Lightspeed proxy 1 all versions
Red Hat Red Hat Update Infrastructure 5 all versions
redhat update infrastructure 5.0 – < 5.2
rhui 5 —

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (35)
  • cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* ≥ 0.1.17 ≤ 0.9.7
  • cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* ≥ 1.0.0 < 1.30.2
  • cpe:2.3:a:f5:nginx_open_source:1.31.0:*:*:*:*:*:*:*
  • cpe:2.3:a:f5:nginx_plus:*:*:*:*:continuous_releases:*:*:* ≥ r33 < r36
  • cpe:2.3:a:f5:nginx_plus:37.0.0.1:*:*:*:long-term_support:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:-:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:p1:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:p2:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:p3:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:p4:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:p5:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r32:p6:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r36:-:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r36:p2:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r36:p3:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:nginx_plus:r36:p4:*:*:continuous_releases:*:*:*
  • cpe:2.3:a:f5:dos:*:*:*:*:*:nginx:*:* ≥ 4.3.0 ≤ 4.7.0
  • cpe:2.3:a:f5:dos:4.9.0:*:*:*:*:nginx:*:*
  • cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* ≥ 1.3.0 ≤ 1.6.2
  • cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* ≥ 2.0.0 < 2.6.2
  • cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:* ≥ 3.5.0 ≤ 3.7.2
  • cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:* ≥ 4.0.0 ≤ 4.0.1
  • cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:* ≥ 5.0.0 < 5.4.3
  • cpe:2.3:a:f5:nginx_instance_manager:*:*:*:*:*:*:*:* ≥ 2.17.0 < 2.22.1
  • cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:* ≥ 4.10.0 ≤ 4.16.0
  • cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:* ≥ 5.2.0 ≤ 5.8.0
  • cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:* ≥ 5.9.0 ≤ 5.13.0
  • cpe:2.3:a:redhat:discovery:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:update_infrastructure:*:*:*:*:*:*:*:* ≥ 5.0 < 5.2
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

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