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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00032.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Go Standard Library Subscribe
Net/url Subscribe
Golang Subscribe
Go Subscribe

Configuration 1 [-]

OR cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Go Standard Library Subscribe
Net/url Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://go.dev/cl/736712 cve-icon cve-icon cve-icon
https://go.dev/issue/77101 cve-icon cve-icon cve-icon
https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-61726 cve-icon
https://pkg.go.dev/vuln/GO-2026-4341 cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-61726 cve-icon
History

Fri, 06 Feb 2026 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Golang
Golang go
CPEs cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
Vendors & Products Golang
Golang go

Tue, 03 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
References
Metrics threat_severity

None

 threat_severity

Important

Fri, 30 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 29 Jan 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Thu, 29 Jan 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Go Standard Library
Go Standard Library net/url
Vendors & Products Go Standard Library
Go Standard Library net/url

Wed, 28 Jan 2026 19:45:00 +0000

Type Values Removed Values Added
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.
Title Memory exhaustion in query parameter parsing in net/url
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Go

Published:

Updated: 2026-01-29T18:31:59.685Z

Reserved: 2025-09-30T15:05:03.605Z

Link: CVE-2025-61726

cve-icon Vulnrichment

Updated: 2026-01-29T18:31:55.540Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-28T20:16:09.713

Modified: 2026-02-06T18:47:34.520

Link: CVE-2025-61726

cve-icon Redhat

Severity : Important

Publid Date: 2026-01-28T19:30:31Z

Links: CVE-2025-61726 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-29T09:08:59Z

Weaknesses