CVE-2025-61726 — Memory exhaustion in query parameter parsing in net/url

Affected: Go standard library net/url, Red Hat Cryostat 4 on RHEL 9, Red Hat HawtIO HawtIO 4.3.1, Red Hat HawtIO HawtIO 4.4.0, Red Hat Ansible Automation Platform 2.4 for RHEL 8, Red Hat Ansible Automation Platform 2.4 for RHEL 9, Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9, Red Hat Ansible Automation Platform 2.6 for RHEL 10, Red Hat Ansible Automation Platform 2.6 for RHEL 9 and 152 more

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.

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bdu:2026-04124

CVE-2025-61726 — Memory exhaustion in query parameter parsing in net/url