CVE-2026-42934
Full vulnerability record from the local CVENow database.
Description
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering ("off") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
MEDIUM
CVSS score
6.3
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-05-13 16:16:49.910000
Last modified
2026-10-26 14:10:00.130000
View original CVE JSON
{
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"sourceIdentifier": "[email protected]",
"published": "2026-05-13T16:16:49.910",
"lastModified": "2026-10-26T14:10:00.130",
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},
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"value": "NGINX Plus y NGINX Open Source tienen una vulnerabilidad en el módulo ngx_http_charset_module. Cuando las directivas charset, source_charset, charset_map y proxy_pass con el almacenamiento en búfer deshabilitado (’off’) están configuradas, atacantes no autenticados pueden enviar solicitudes que, con condiciones fuera del control de los atacantes, causen una lectura excesiva del búfer de pila en el proceso de trabajo de NGINX, lo que lleva a una divulgación limitada de memoria o a un reinicio.\n\nNota: Las versiones de software que han alcanzado el Fin del Soporte Técnico (EoTS) no son evaluadas."
}
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{
"source": "[email protected]",
"affectedData": [
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}