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

Published Jan 28, 2026
·
Updated

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.

Affected Software

7 affected components
net/url
Golang Go<1.24.12
Golang Go>=1.25.0<1.25.6
IBM Verify Identity Access<=11.0 - 11.0.2
IBM Security Verify Access<=10.0 - 10.0.9.1
IBM Verify Identity Access Container<=11.0 - 11.0.2
IBM Security Verify Access Container<=10.0 - 10.0.9.1

Remediation

Event History

Jan 28, 2026
CVE Published
via MITRE·07:30 PM
Data Sourced
via MITRE·07:30 PM
DescriptionWeakness
Data Sourced
via Red Hat·08:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·08:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jul 8, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2025-61726?

CVE-2025-61726 has been classified as a moderate severity vulnerability due to its potential for causing memory exhaustion.

2

How do I fix CVE-2025-61726?

To mitigate CVE-2025-61726, implement input validation to limit the number of query parameters processed in your application.

3

Which software versions are affected by CVE-2025-61726?

CVE-2025-61726 affects all versions of the net/url package that do not impose limitations on query parameters.

4

What are the potential impacts of CVE-2025-61726?

The potential impacts of CVE-2025-61726 include denial of service through memory exhaustion in applications utilizing the affected net/url package.

5

Is CVE-2025-61726 related to web application security?

Yes, CVE-2025-61726 is directly related to web application security as it involves query parameter parsing in HTTP requests.

Contact

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