ALPINE-CVE-2026-9256
ALPINE-CVE-2026-9256
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 9.2 · Crítica · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system · web
Productos y versiones afectados
nginx Alpine:v3.21
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.26.3-r1
Actualiza a 1.26.3-r1
nginx Alpine:v3.22
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.28.3-r2
Actualiza a 1.28.3-r2
nginx Alpine:v3.23
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.28.3-r2
Actualiza a 1.28.3-r2
nginx Alpine:v3.24
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.30.2-r0
Actualiza a 1.30.2-r0