Vulnerability-Lookup

GHSA-GM9R-Q53W-2GH4

Vulnerability from github – Published: 2026-01-28 21:31 – Updated: 2026-01-28 21:31

Details

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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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-61726"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-28T20:16:09Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-gm9r-q53w-2gh4",
  "modified": "2026-01-28T21:31:23Z",
  "published": "2026-01-28T21:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61726"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/736712"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/77101"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-4341"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-61726 (GCVE-0-2025-61726)

Vulnerability from cvelistv5 – Published: 2026-01-28 19:30 – Updated: 2026-01-29 18:31

Title

Memory exhaustion in query parameter parsing in net/url

Summary

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

References

URL

Tags

	https://go.dev/cl/736712
	https://go.dev/issue/77101
	https://groups.google.com/g/golang-announce/c/Vd2…
	https://pkg.go.dev/vuln/GO-2026-4341

Impacted products

	Vendor	Product	Version
	Go standard library	net/url	Affected: 0 , < 1.24.12 (semver) Affected: 1.25.0 , < 1.25.6 (semver)

Credits

jub0bs

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-61726",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-29T18:31:39.150633Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-29T18:31:59.685Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/url",
          "product": "net/url",
          "programRoutines": [
            {
              "name": "parseQuery"
            },
            {
              "name": "ParseQuery"
            },
            {
              "name": "URL.Query"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.24.12",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.25.6",
              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "jub0bs"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-28T19:30:31.215Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/736712"
        },
        {
          "url": "https://go.dev/issue/77101"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4341"
        }
      ],
      "title": "Memory exhaustion in query parameter parsing in net/url"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2025-61726",
    "datePublished": "2026-01-28T19:30:31.215Z",
    "dateReserved": "2025-09-30T15:05:03.605Z",
    "dateUpdated": "2026-01-29T18:31:59.685Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-GM9R-Q53W-2GH4

CVE-2025-61726 (GCVE-0-2025-61726)

Tags

Sightings

Nomenclature