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CVE-2026-9256

HIGH(8.1)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Risk Signal Score24/100 — NIEDRIG
  • CVSS 8.1 — Hoch

Erwähnungen (letzte 60 Tage)

Artikel

EPSS-Score

10.9%

Exploit-Wahrscheinlichkeit (30 Tage)

CVSS Score

8.1

Technische Schwere

Beschreibung

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.

Betroffene Produkte

  • cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*
  • cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*
  • cpe:2.3:a:f5:nginx_open_source:1.31.0:*:*:*:*:*:*:*
  • cpe:2.3:a:f5:nginx_plus:*:*:*:*:continuous_releases:*:*:*
  • 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:*:*
  • cpe:2.3:a:f5:dos:4.9.0:*:*:*:*:nginx:*:*
  • cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*

Referenzen