GO-2025-4012

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

En bref

Publiée
Mise à jour
CVE
CVE-2025-58186
Alias
BIT-golang-2025-58186

Description

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.

Paquets affectés

PaquetVersions
Go · stdlibintroduced 0, fixed 1.24.8, introduced 1.25.0, fixed 1.25.2

Références

Sources

SourceLicence
OSV.devCC-BY 4.0 — Go Vulnerability Database