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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
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.
Metrics
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[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"versions":[{"version":"2:1.26.3-6.el10_2.4","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx:1.24","cpes":["cpe:/a:redhat:enterprise_linux:8"],"versions":[{"version":"8100020260611094050.489197e6","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx:1.24","cpes":["cpe:/a:redhat:enterprise_linux:9"],"versions":[{"version":"9080020260610161820.9","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx","cpes":["cpe:/a:redhat:enterprise_linux:9"],"versions":[{"version":"2:1.20.1-28.el9_8.3","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx:1.26","cpes":["cpe:/a:redhat:enterprise_linux:9"],"versions":[{"version":"9080020260609152155.9","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Discovery 2","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"discovery/discovery-ui-rhel9","cpes":["cpe:/a:redhat:discovery:2::el9"],"versions":[{"version":"1782756541","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendo
CVE Translated by NIST7/23/2026 8:10:00 AM
Action
Type
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Translation
Title: NGINX Plus y NGINX Open Source de F5, Description: NGINX Plus y NGINX Open Source tienen una vulnerabilidad en el módulo ngx_http_rewrite_module. Esta vulnerabilidad existe cuando una directiva de reescritura utiliza un patrón de expresión regular (regex) con capturas de expresiones regulares compatibles con Perl (PCRE) distintas y superpuestas (por ejemplo, ^/((.*))$) y una cadena de reemplazo que hace referencia a múltiples de dichas capturas (por ejemplo, $1$2) en un contexto de redirección o de argumentos. Un atacante no autenticado, junto con condiciones fuera de su control, puede explotar esta vulnerabilidad enviando solicitudes HTTP manipuladas. Esto puede causar un desbordamiento de búfer de pila en el proceso de trabajador de NGINX, lo que lleva a un reinicio. Además, los atacantes pueden ejecutar código en sistemas con la aleatorización del espacio de direcciones (ASLR) deshabilitada o cuando el atacante puede eludir ASLR.
Nota: Las versiones de software que han alcanzado el fin del soporte técnico (EoTS) no se evalúan.
CVE Modified by redhat-SADP7/14/2026 9:17:08 PM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 10)","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::crb"]},{"vendor":"Red Hat","product":"Red Hat Discovery 2","defaultStatus":"affected","cpes":["cpe:/a:redhat:discovery:2::el9"]},{"vendor":"Red Hat","product":"Red Hat Hardened Images","defaultStatus":"affected","cpes":["cpe:/a:redhat:hummingbird:1"]},{"vendor":"Red Hat","product":"Red Hat Lightspeed proxy 1","defaultStatus":"affected","cpes":["cpe:/a:redhat:insights_proxy:1"]}]
[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"versions":[{"version":"2:1.26.3-6.el10_2.4","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx:1.24","cpes":["cpe:/a:redhat:enterprise_linux:8"],"versions":[{"version":"8100020260611094050.489197e6","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx:1.24","cpes":["cpe:/a:redhat:enterprise_linux:9"],"versions":[{"version":"9080020260610161820.9","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx","cpes":["cpe:/a:redhat:enterprise_linux:9"],"versions":[{"version":"2:1.20.1-28.el9_8.3","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"nginx:1.26","cpes":["cpe:/a:redhat:enterprise_linux:9"],"versions":[{"version":"9080020260609152155.9","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Discovery 2","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"discovery/discovery-ui-rhel9","cpes":["cpe:/a:redhat:discovery:2::el9"],"versions":[{"version":"1782756541","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendo
[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 10)","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.2"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::crb"]},{"vendor":"Red Hat","product":"Red Hat Discovery 2","defaultStatus":"affected","cpes":["cpe:/a:redhat:discovery:2::el9"]},{"vendor":"Red Hat","product":"Red Hat Hardened Images","defaultStatus":"affected","cpes":["cpe:/a:redhat:hummingbird:1"]},{"vendor":"Red Hat","product":"Red Hat Lightspeed proxy 1","defaultStatus":"affected","cpes":["cpe:/a:redhat:insights_proxy:1"]}]
[{"vendor":"F5","product":"NGINX Plus","defaultStatus":"unknown","modules":["ngx_http_rewrite_module"],"versions":[{"version":"37.0","lessThan":"37.0.1.1","versionType":"custom","status":"affected"},{"version":"R36","lessThan":"R36 P5","versionType":"custom","status":"affected"},{"version":"R32","lessThan":"R32 P7","versionType":"custom","status":"affected"}]},{"vendor":"F5","product":"NGINX Open Source","defaultStatus":"unaffected","modules":["ngx_http_rewrite_module"],"versions":[{"version":"1.31.0","lessThan":"1.31.1","versionType":"custom","status":"affected"},{"version":"1.30.0","lessThan":"1.30.2","versionType":"custom","status":"affected"},{"version":"0.1.17","lessThanOrEqual":"0.9.7","versionType":"custom","status":"affected"}]}]
Initial Analysis by NIST6/16/2026 3:59:28 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:* versions from (including) r32 up to (including) r36
*cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* versions from (including) 0.1.17 up to (including) 0.9.7
*cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:* versions from (including) 1.0.0 up to (including) 1.30.1
*cpe:2.3:a:f5:nginx_open_source:1.31.0:*:*:*:*:*:*:*
*cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:* versions from (including) 37.0.0 up to (excluding) 37.0.1.1
Added
Reference Type
CVE: http://www.openwall.com/lists/oss-security/2026/05/22/14 Types: Mailing List, Third Party Advisory
New CVE Received from F5 Networks5/22/2026 11:16:27 AM
Action
Type
Old Value
New Value
Added
Description
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.
) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
