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.

PUBLISHED Reserved 2025-09-30 | Published 2026-01-28 | Updated 2026-01-29 | Assigner Go

Problem types

CWE-400: Uncontrolled Resource Consumption

Product status

Credits

jub0bs

References

go.dev/cl/736712

go.dev/issue/77101

groups.google.com/g/golang-announce/c/Vd2tYVM8eUc

pkg.go.dev/vuln/GO-2026-4341

cve.org (CVE-2025-61726)

nvd.nist.gov (CVE-2025-61726)

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