CVE-2025-61726

CVE-2025-61726 is a high-severity vulnerability in Golang Go with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

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.

Frequently asked questions

What is CVE-2025-61726?
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.
How severe is CVE-2025-61726?
CVE-2025-61726 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-61726 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-61726?
CVE-2025-61726 affects Golang Go. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-61726?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-61726 have an EU (EUVD) identifier?
Yes. CVE-2025-61726 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206445.
When was CVE-2025-61726 published?
CVE-2025-61726 was published on 2026-01-28 and last updated on 2026-07-07.

References

Affected products (1)

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