CVE-2025-61726

Description

The net/url package does not set a limit on the number of query parameters in a query. While the maximum size of query parameters in URLs is generally limited by the maximum request header size, the net/http.Request.ParseForm method can parse large URL-encoded forms. Parsing a large form containing many unique query parameters can cause excessive memory consumption.

CVSS breakdown

Affected products

• Golang / Go1.24.12
• Go standard library / net/url0 – 1.24.12
• Go standard library / net/url1.25.0 – 1.25.6

References

• MISChttps://go.dev/cl/736712
• MISChttps://go.dev/issue/77101
• MISChttps://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
• MISChttps://pkg.go.dev/vuln/GO-2026-4341