Vulnerability-Lookup

(CVE-2026-25680)

Vulnerability from cleanstart – Published: 2026-09-18 00:46 – Updated: 2026-09-18 11:59 – Source website

Withdrawn 2026-09-18

Summary

gRPC-Go is the Go language implementation of gRPC

Details

Multiple security vulnerabilities affect the cloudnative-pg package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details.

Severity

9.8 (Critical)


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

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2026-25680	WEB
	https://osv.dev/vulnerability/CVE-2026-25681	WEB
	https://osv.dev/vulnerability/CVE-2026-27136	WEB
	https://osv.dev/vulnerability/CVE-2026-33818	WEB
	https://osv.dev/vulnerability/CVE-2026-39821	WEB
	https://osv.dev/vulnerability/CVE-2026-39822	WEB
	https://osv.dev/vulnerability/CVE-2026-42502	WEB
	https://osv.dev/vulnerability/CVE-2026-42505	WEB
	https://osv.dev/vulnerability/CVE-2026-42506	WEB
	https://osv.dev/vulnerability/CVE-2026-46600	WEB
	https://osv.dev/vulnerability/CVE-2026-56852	WEB
	https://osv.dev/vulnerability/CVE-2026-56853	WEB
	https://osv.dev/vulnerability/CVE-2026-56858	WEB
	https://osv.dev/vulnerability/CVE-2026-56859	WEB
	https://osv.dev/vulnerability/CVE-2026-56860	WEB
	https://osv.dev/vulnerability/CVE-2026-56862	WEB
	https://osv.dev/vulnerability/CVE-2026-84303	WEB
	https://osv.dev/vulnerability/CVE-2026-84304	WEB
	https://osv.dev/vulnerability/CVE-2026-84445	WEB
	https://osv.dev/vulnerability/ghsa-hrxh-6v49-42gf	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-25680	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-25681	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-27136	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-33818	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-39821	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-39822	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-42502	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-42505	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-42506	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-46600	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-56852	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-56853	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-56858	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-56859	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-56860	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-56862	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-84303	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-84304	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-84445	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "cloudnative-pg"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.30.0-r2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Multiple security vulnerabilities affect the cloudnative-pg package. gRPC-Go is the Go language implementation of gRPC. See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-FY06810",
  "modified": "2026-09-18T11:59:01.768079Z",
  "published": "2026-09-18T00:46:28.551723Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-FY06810.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-25680"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-25681"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-27136"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-33818"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-39821"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-39822"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-42502"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-42505"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-42506"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-46600"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56852"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56853"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56858"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56859"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56860"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-56862"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-84303"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-84304"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-84445"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/ghsa-hrxh-6v49-42gf"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25680"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25681"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27136"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33818"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39821"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39822"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42502"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42505"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42506"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46600"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56852"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56853"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56858"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56859"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56860"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56862"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84303"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84304"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84445"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "gRPC-Go is the Go language implementation of gRPC",
  "upstream": [
    "CVE-2026-25680",
    "CVE-2026-25681",
    "CVE-2026-27136",
    "CVE-2026-33818",
    "CVE-2026-39821",
    "CVE-2026-39822",
    "CVE-2026-42502",
    "CVE-2026-42505",
    "CVE-2026-42506",
    "CVE-2026-46600",
    "CVE-2026-56852",
    "CVE-2026-56853",
    "CVE-2026-56858",
    "CVE-2026-56859",
    "CVE-2026-56860",
    "CVE-2026-56862",
    "CVE-2026-84303",
    "CVE-2026-84304",
    "CVE-2026-84445",
    "ghsa-hrxh-6v49-42gf"
  ],
  "withdrawn": "2026-09-18T11:59:01.768079Z"
}

CVE-2026-56852 (GCVE-0-2026-56852)

Vulnerability from cvelistv5 – Published: 2026-07-21 19:18 – Updated: 2026-08-10 22:57

Title

Infinite loop on invalid input in golang.org/x/text

Summary

A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 13:26 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

Go Google root

References

3 references

URL	Tags
https://go.dev/issue/80142
https://go.dev/cl/794100
https://pkg.go.dev/vuln/GO-2026-5970

Impacted products

1 product

Vendor	Product	Version
golang.org/x/text	golang.org/x/text/unicode/norm	Affected: 0 , < 0.39.0 (semver)

Credits

Viky Choi ("vikychoi" on GitHub)

Show details on NVD website

JSON

To clipboard

{
  "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-2026-56852",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-23T13:26:14.918983Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-835",
                "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-23T13:26:20.232Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/text/unicode/norm",
          "product": "golang.org/x/text/unicode/norm",
          "programRoutines": [
            {
              "name": "nextComposed"
            },
            {
              "name": "Form.Append"
            },
            {
              "name": "Form.AppendString"
            },
            {
              "name": "Form.Bytes"
            },
            {
              "name": "Form.FirstBoundary"
            },
            {
              "name": "Form.FirstBoundaryInString"
            },
            {
              "name": "Form.IsNormal"
            },
            {
              "name": "Form.IsNormalString"
            },
            {
              "name": "Form.LastBoundary"
            },
            {
              "name": "Form.NextBoundary"
            },
            {
              "name": "Form.NextBoundaryInString"
            },
            {
              "name": "Form.Properties"
            },
            {
              "name": "Form.PropertiesString"
            },
            {
              "name": "Form.QuickSpan"
            },
            {
              "name": "Form.QuickSpanString"
            },
            {
              "name": "Form.Span"
            },
            {
              "name": "Form.SpanString"
            },
            {
              "name": "Form.String"
            },
            {
              "name": "Form.Transform"
            },
            {
              "name": "Iter.Init"
            },
            {
              "name": "Iter.InitString"
            },
            {
              "name": "Iter.Next"
            },
            {
              "name": "Iter.Seek"
            },
            {
              "name": "normReader.Read"
            },
            {
              "name": "normWriter.Write"
            }
          ],
          "vendor": "golang.org/x/text",
          "versions": [
            {
              "lessThan": "0.39.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Viky Choi (\"vikychoi\" on GitHub)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-10T22:57:54.703Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/80142"
        },
        {
          "url": "https://go.dev/cl/794100"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-5970"
        }
      ],
      "title": "Infinite loop on invalid input in golang.org/x/text"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-56852",
    "datePublished": "2026-07-21T19:18:59.951Z",
    "dateReserved": "2026-06-23T15:10:49.352Z",
    "dateUpdated": "2026-08-10T22:57:54.703Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-56853 (GCVE-0-2026-56853)

Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:23

Title

Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http

Summary

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 15:22 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/80205
https://go.dev/cl/795540
https://groups.google.com/g/golang-announce/c/94p…
https://pkg.go.dev/vuln/GO-2026-6089

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/http	Affected: 0 , < 1.25.13 (semver) Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)

Show details on NVD website

JSON

To clipboard

{
  "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-2026-56853",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-14T15:22:45.475320Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-770",
                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-14T15:23:18.680Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/http",
          "product": "net/http",
          "programRoutines": [
            {
              "name": "conn.readRequest"
            },
            {
              "name": "conn.serve"
            },
            {
              "name": "ListenAndServe"
            },
            {
              "name": "ListenAndServeTLS"
            },
            {
              "name": "Serve"
            },
            {
              "name": "ServeTLS"
            },
            {
              "name": "Server.ListenAndServe"
            },
            {
              "name": "Server.ListenAndServeTLS"
            },
            {
              "name": "Server.Serve"
            },
            {
              "name": "Server.ServeTLS"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.13",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.26.6",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.27.0-rc.3",
              "status": "affected",
              "version": "1.27.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-13T21:58:53.092Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/80205"
        },
        {
          "url": "https://go.dev/cl/795540"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-6089"
        }
      ],
      "title": "Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http"
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    "dateUpdated": "2026-08-14T15:23:18.680Z",
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  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-56858 (GCVE-0-2026-56858)

Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:32

Title

Fix Javascript regexp context tracking in html/template

Summary

Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.

Severity

6.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 15:31 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/80435
https://go.dev/cl/807100
https://groups.google.com/g/golang-announce/c/94p…
https://pkg.go.dev/vuln/GO-2026-6091

Impacted products

1 product

Vendor	Product	Version
Go standard library	html/template	Affected: 0 , < 1.25.13 (semver) Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)

Credits

Ali Sherif

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
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CVE-2026-56859 (GCVE-0-2026-56859)

Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:21

Title

Add recursion depth guard during decode in encoding/xml

Summary

Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 15:21 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/80481
https://go.dev/cl/803320
https://groups.google.com/g/golang-announce/c/94p…
https://pkg.go.dev/vuln/GO-2026-6088

Impacted products

1 product

Vendor	Product	Version
Go standard library	encoding/xml	Affected: 0 , < 1.25.13 (semver) Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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              "attackComplexity": "LOW",
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CVE-2026-56860 (GCVE-0-2026-56860)

Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 16:14

Title

Avoid quadratic complexity in resolvePath in net/url

Summary

Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 16:14 UTC

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/cl/803681
https://go.dev/issue/80494
https://groups.google.com/g/golang-announce/c/94p…
https://pkg.go.dev/vuln/GO-2026-6218

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/url	Affected: 0 , < 1.25.13 (semver) Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "NONE",
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CVE-2026-56862 (GCVE-0-2026-56862)

Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:29

Title

Limit handshake messages we are willing to accept post-handshake in crypto/tls

Summary

Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-14 15:27 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

Go Google root

References

4 references

URL	Tags
https://go.dev/issue/80528
https://go.dev/cl/804261
https://groups.google.com/g/golang-announce/c/94p…
https://pkg.go.dev/vuln/GO-2026-6090

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/tls	Affected: 0 , < 1.25.13 (semver) Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver)

Credits

Qi Deng of Aurascape.ai

Show details on NVD website

JSON

To clipboard

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            "cvssV3_1": {
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              "name": "Conn.HandshakeContext"
            },
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              "name": "Conn.Read"
            },
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              "name": "Conn.Write"
            },
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              "name": "Dial"
            },
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              "name": "DialWithDialer"
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              "name": "Dialer.Dial"
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CVE-2026-84303 (GCVE-0-2026-84303)

Vulnerability from cvelistv5 – Published: 2026-09-01 18:14 – Updated: 2026-09-02 19:14

Title

gRPC-Go: xDS RBAC HTTP Filter bypass via mixed-case Header Matching and gRFC A41 validation evasion

Summary

gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, the xDS RBAC HTTP filter in internal/xds/httpfilter/rbac/rbac.go does not lowercase header matcher names in normalizeHeaderMatcher even though incoming metadata keys are lowercase. A DENY policy using a mixed-case name such as X-Role or User-Agent therefore does not match and fails open, allowing requests that should be rejected. The same case mismatch permits :Scheme or Grpc-Status to evade gRFC A41 validation and prevents Host from being rewritten to :authority. This issue is fixed in version 1.83.1.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 19:14 UTC

CWE

CWE-178 - Improper Handling of Case Sensitivity
CWE-863 - Incorrect Authorization

Assigner

GitHub_M mitre root

References

6 references

URL	Tags
https://github.com/grpc/grpc-go/security/advisori…	x_refsource_CONFIRM
https://github.com/grpc/grpc-go/pull/9332	x_refsource_MISC
https://github.com/grpc/grpc-go/pull/9335	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/db9482836c…	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/ebba6f3f1b…	x_refsource_MISC
https://github.com/grpc/grpc-go/releases/tag/v1.83.1	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
grpc	grpc-go	Affected: < 1.83.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-84304 (GCVE-0-2026-84304)

Vulnerability from cvelistv5 – Published: 2026-09-01 18:19 – Updated: 2026-09-01 19:24

Title

gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation

Summary

gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can consume disproportionate heap memory even when payload bytes remain within connection and stream flow-control windows. An unauthenticated remote attacker can use concurrent multiplexed streams to exhaust process memory and cause a runtime panic or out-of-memory termination. Receive-buffer compaction is enabled by default and can be controlled temporarily with GRPC_GO_EXPERIMENTAL_ENABLE_RECEIVE_BUFFER_COMPACTION. This issue is fixed in version 1.83.1.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 19:23 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

6 references

URL	Tags
https://github.com/grpc/grpc-go/security/advisori…	x_refsource_CONFIRM
https://github.com/grpc/grpc-go/pull/9331	x_refsource_MISC
https://github.com/grpc/grpc-go/pull/9333	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/7354d9c8de…	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/8cfeca0e1e…	x_refsource_MISC
https://github.com/grpc/grpc-go/releases/tag/v1.83.1	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
grpc	grpc-go	Affected: < 1.83.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-84445 (GCVE-0-2026-84445)

Vulnerability from cvelistv5 – Published: 2026-09-14 16:11 – Updated: 2026-09-14 16:36

Title

gRPC-Go: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers in the xDS servers

Summary

gRPC-Go is the Go language implementation of gRPC. Prior to 1.82.2 and 1.83.2, servers created with xds.NewGRPCServer() allow internal/transport/http2_server.go to accept an RPC containing neither the :authority header nor the Host header, while RouteAndProcess in internal/xds/server/routing.go assumes that an authority value exists and indexes the empty slice. A remote client that can complete transport connection establishment can trigger an index-out-of-bounds panic that is not recovered by the per-RPC goroutine and terminates the entire server process. In insecure or ordinary TLS deployments the request can be unauthenticated, while strict mTLS or ALTS deployments require valid transport credentials before the malformed RPC can reach the interceptor. This issue is fixed in versions 1.82.2 and 1.83.2.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 16:36 UTC

CWE

CWE-129 - Improper Validation of Array Index
CWE-248 - Uncaught Exception

Assigner

GitHub_M mitre root

References

10 references

URL	Tags
https://github.com/grpc/grpc-go/security/advisori…	x_refsource_CONFIRM
https://github.com/grpc/grpc-go/issues/9354	x_refsource_MISC
https://github.com/grpc/grpc-go/pull/9365	x_refsource_MISC
https://github.com/grpc/grpc-go/pull/9366	x_refsource_MISC
https://github.com/grpc/grpc-go/pull/9367	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/3822494d8e…	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/8668b69c16…	x_refsource_MISC
https://github.com/grpc/grpc-go/commit/93e31b4854…	x_refsource_MISC
https://github.com/grpc/grpc-go/releases/tag/v1.82.2	x_refsource_MISC
https://github.com/grpc/grpc-go/releases/tag/v1.83.2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
grpc	grpc-go	Affected: < 1.82.2 Affected: >= 1.83.0, < 1.83.2

Show details on NVD website

JSON

To clipboard

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          ],
          "url": "https://github.com/grpc/grpc-go/pull/9366"
        },
        {
          "name": "https://github.com/grpc/grpc-go/pull/9367",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-go/pull/9367"
        },
        {
          "name": "https://github.com/grpc/grpc-go/commit/3822494d8ea03b992c089fd2a195f041762fffb7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-go/commit/3822494d8ea03b992c089fd2a195f041762fffb7"
        },
        {
          "name": "https://github.com/grpc/grpc-go/commit/8668b69c167df908b6b3666dcbf40992b9e932a4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-go/commit/8668b69c167df908b6b3666dcbf40992b9e932a4"
        },
        {
          "name": "https://github.com/grpc/grpc-go/commit/93e31b48545e2a8aaeb6e06b47fb249f94e6297f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-go/commit/93e31b48545e2a8aaeb6e06b47fb249f94e6297f"
        },
        {
          "name": "https://github.com/grpc/grpc-go/releases/tag/v1.82.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-go/releases/tag/v1.82.2"
        },
        {
          "name": "https://github.com/grpc/grpc-go/releases/tag/v1.83.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/grpc/grpc-go/releases/tag/v1.83.2"
        }
      ],
      "source": {
        "advisory": "GHSA-2v4p-qf9q-27wj",
        "discovery": "UNKNOWN"
      },
      "title": "gRPC-Go: Denial of Service (DoS) via crash due to missing `:authority` and `Host` headers in the xDS servers"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-84445",
    "datePublished": "2026-09-14T16:11:41.401Z",
    "dateReserved": "2026-09-01T20:05:09.422Z",
    "dateUpdated": "2026-09-14T16:36:14.966Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-HRXH-6V49-42GF

Vulnerability from github – Published: 2026-07-21 22:03 – Updated: 2026-07-21 22:03

Summary

gRPC-Go: xDS RBAC and HTTP/2 Vulnerabilities

Details

Multiple security vulnerabilities have been identified and addressed in grpc-go affecting the xDS RBAC authorization engine (internal/xds/rbac) and the HTTP/2 transport server implementation (internal/transport). These vulnerabilities could result in:

Authorization Bypass (Fail-Open) when translating xDS RBAC policies containing Metadata or RequestedServerName fields.
Denial of Service (High CPU Consumption) due to an HTTP/2 Rapid Reset mitigation bypass during client-initiated stream resets.
Denial of Service (Server Panic) when parsing crafted xDS RBAC policies containing NOT rules around unsupported fields.

Impact

What kind of vulnerability is it? Who is impacted?

xDS RBAC Authorization Bypass via `Metadata` & `RequestedServerName` matchers

Affected Component: xDS RBAC
Impact: When building policy matchers for gRPC RBAC from xDS configurations, unsupported permission and principal rules (specifically Metadata and RequestedServerName) were silently ignored and treated as no-ops.
If an authorization policy relied purely on these matchers for access control, treating those rules as no-ops effectively removed the restrictions.
If these unsupported rules were nested inside logical NOT rules (Permission_NotRule / Principal_NotId) or multi-condition OR/AND rules, silently dropping them changed the boolean logic flow of the authorization engine.

As a result, policy evaluation decisions could fail open, allowing unauthorized clients to access protected gRPC services or resources.

HTTP/2 Rapid Reset Mitigation Bypass / Denial of Service via Stream Aborts

Affected Component: HTTP/2 transport
Impact: Earlier mitigations in grpc-go for HTTP/2 Rapid Reset only applied threshold checks to items that directly resulted in control frames being written back to the wire, such as SETTINGS ACKs or server-initiated RST_STREAMs.

When a client initiated a rapid flood of stream creation (HEADERS) immediately followed by stream termination RST_STREAM, items queued up in the control buffer without counting against the transport response frame threshold. An attacker can repeatedly trigger this flood sequence to bypass reader blocking, resulting in high CPU usage, and Denial of Service (DoS).

Denial of Service (Panic) in xDS RBAC Engine via Unsupported Fields inside NOT Rules

Affected Component: xDS RBAC
Impact: The xDS RBAC policy translators recursively generate matchers for nested rules. When a NOT rule wrapped an unsupported or unhandled field (such as SourcedMetadata), the recursive step returned an empty matcher. This could result in a runtime panic when the RBAC engine attempts to authorize an incoming request.

An attacker or misconfigured/malicious xDS management server delivering an LDS/RDS update containing a NOT rule around an unhandled field causes the gRPC server process to crash immediately (CWE-248 / Denial of Service).

Patches

Has the problem been patched? What versions should users upgrade to?

All three issues have been fixed in master and will be released in 1.82.1 shortly.

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

If upgrading grpc-go immediately is not possible, apply the following workarounds based on your deployment architecture:

For xDS RBAC Vulnerabilities & Panics: Ensure that upstream xDS management servers do not push RBAC policies containing Metadata, RequestedServerName, or NOT rules wrapping unsupported fields (such as SourcedMetadata) to grpc-go servers.
For HTTP/2 Rapid Reset DOS: Configure upstream reverse proxies or load balancers (such as Envoy) with strict HTTP/2 max_concurrent_streams limits and active rate limiting on RST_STREAM frequency per connection.

Severity

Vulnerability	Qualitative Severity	Approximate CVSS v3.1 Score	Primary Impact
xDS RBAC Authorization Bypass	High	`8.2`	Unauthorized Access / Fail-Open
HTTP/2 Rapid Reset DOS Bypass	High	`7.5`	High CPU Consumption / Denial of Service
xDS RBAC Engine Server Panic	Medium	`5.9`	Process Crash / Denial of Service

Severity

8.8 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "google.golang.org/grpc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.82.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-248",
      "CWE-770",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-21T22:03:55Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Multiple security vulnerabilities have been identified and addressed in grpc-go affecting the xDS RBAC authorization engine (internal/xds/rbac) and the HTTP/2 transport server implementation (internal/transport). These vulnerabilities could result in:\n\n- Authorization Bypass (Fail-Open) when translating xDS RBAC policies containing `Metadata` or `RequestedServerName` fields.\n- Denial of Service (High CPU Consumption) due to an HTTP/2 Rapid Reset mitigation bypass during client-initiated stream resets.\n- Denial of Service (Server Panic) when parsing crafted xDS RBAC policies containing `NOT` rules around unsupported fields.\n\n\n### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\n#### xDS RBAC Authorization Bypass via `Metadata` \u0026 `RequestedServerName` matchers\n\n- Affected Component: xDS RBAC \n- Impact: When building policy matchers for gRPC RBAC from xDS configurations, unsupported `permission` and `principal` rules (specifically `Metadata` and `RequestedServerName`) were silently ignored and treated as no-ops.\n  - If an authorization policy relied purely on these matchers for access control, treating those rules as no-ops effectively removed the restrictions.\n- If these unsupported rules were nested inside logical `NOT` rules (`Permission_NotRule` / `Principal_NotId`) or multi-condition `OR/AND` rules, silently dropping them changed the boolean logic flow of the authorization engine.\n\nAs a result, policy evaluation decisions could fail open, allowing unauthorized clients to access protected gRPC services or resources.\n\n#### HTTP/2 Rapid Reset Mitigation Bypass / Denial of Service via Stream Aborts\n\n- Affected Component: HTTP/2 transport\n- Impact: Earlier mitigations in grpc-go for HTTP/2 Rapid Reset only applied threshold checks to items that directly resulted in control frames being written back to the wire, such as `SETTINGS` ACKs or server-initiated `RST_STREAM`s.\n\nWhen a client initiated a rapid flood of stream creation (`HEADERS`) immediately followed by stream termination `RST_STREAM`, items queued up in the control buffer without counting against the transport response frame threshold. An attacker can repeatedly trigger this flood sequence to bypass reader blocking, resulting in high CPU usage, and Denial of Service (DoS).\n\n#### Denial of Service (Panic) in xDS RBAC Engine via Unsupported Fields inside NOT Rules\n\n- Affected Component: xDS RBAC \n- Impact: The xDS RBAC policy translators recursively generate matchers for nested rules. When a `NOT` rule wrapped an unsupported or unhandled field (such as `SourcedMetadata`), the recursive step returned an empty matcher. This could result in a runtime panic when the RBAC engine attempts to authorize an incoming request.\n\nAn attacker or misconfigured/malicious xDS management server delivering an LDS/RDS update containing a `NOT` rule around an unhandled field causes the gRPC server process to crash immediately (CWE-248 / Denial of Service).\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nAll three issues have been fixed in `master` and will be released in 1.82.1 shortly.\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nIf upgrading grpc-go immediately is not possible, apply the following workarounds based on your deployment architecture:\n\n* For xDS RBAC Vulnerabilities \u0026 Panics: Ensure that upstream xDS management servers do not push RBAC policies containing `Metadata`, `RequestedServerName`, or `NOT` rules wrapping unsupported fields (such as `SourcedMetadata`) to grpc-go servers.\n* For HTTP/2 Rapid Reset DOS: Configure upstream reverse proxies or load balancers (such as Envoy) with strict HTTP/2 `max_concurrent_streams` limits and active rate limiting on `RST_STREAM` frequency per connection.\n\n### Severity\n\n  | Vulnerability | Qualitative Severity | Approximate CVSS v3.1 Score | Primary Impact |\n  | :--- | :--- | :--- | :--- |\n  | **xDS RBAC Authorization Bypass** | **High** | `8.2` | Unauthorized Access / Fail-Open |\n  | **HTTP/2 Rapid Reset DOS Bypass** | **High** | `7.5` | High CPU Consumption / Denial of Service |\n  | **xDS RBAC Engine Server Panic** | **Medium** | `5.9` | Process Crash / Denial of Service |",
  "id": "GHSA-hrxh-6v49-42gf",
  "modified": "2026-07-21T22:03:56Z",
  "published": "2026-07-21T22:03:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/security/advisories/GHSA-hrxh-6v49-42gf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/pull/9236"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/commit/4ea465d4ab98013f72a142fe0fc89c19770b2935"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/grpc/grpc-go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/releases/tag/v1.82.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "gRPC-Go: xDS RBAC and HTTP/2 Vulnerabilities"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-HRXH-6V49-42GF

Impact

xDS RBAC Authorization Bypass via Metadata & RequestedServerName matchers

HTTP/2 Rapid Reset Mitigation Bypass / Denial of Service via Stream Aborts

Denial of Service (Panic) in xDS RBAC Engine via Unsupported Fields inside NOT Rules

Patches

Workarounds

Severity

Tags

Sightings

Nomenclature

Related by attack behaviour

xDS RBAC Authorization Bypass via `Metadata` & `RequestedServerName` matchers