CVE-2025-61726highCWE-770

CVE-2025-61726: high-severity vulnerability in Go standard library net/url

Memory exhaustion in query parameter parsing in net/url

Published · Updated

Follow this CVE+ Monitor net/url+ Monitor go

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 2.3%
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Go standard library · net/url
Related CVEs — Go standard library net/url

In the same product, most dangerous first.

CVE-2022-32190—Failure to strip relative path components in net/urlEPSS 2.3%CVE-2026-25679HIGHIncorrect parsing of IPv6 host literals in net/urlEPSS 0.8%CVE-2026-56860MEDIUMAvoid quadratic complexity in resolvePath in net/urlEPSS 0.5%CVE-2025-47912MEDIUMInsufficient validation of bracketed IPv6 hostnames in net/urlEPSS 0.5%