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CVE-2025-58186

Lack of limit when parsing cookies can cause memory exhaustion in net/http

CVSS 5.3 MEDIUMEPSS 0.5%
Vexday Risk Score
13Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 5.3EPSS 0.5%KEV nãoPoC Nuclei Metasploit Patch
Ciclo de vida
29 oct 2025Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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