Vulnerability-Lookup

CVE-2025-65947 (GCVE-0-2025-65947)

Vulnerability from cvelistv5 – Published: 2025-11-21 22:15 – Updated: 2025-11-24 14:56

Title

thread-amount is Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS

Summary

thread-amount is a tool that gets the amount of threads in the current process. Prior to version 0.2.2, there are resource leaks when querying thread counts on Windows and Apple platforms. In Windows platforms, the thread_amount function calls CreateToolhelp32Snapshot but fails to close the returned HANDLE using CloseHandle. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached. In Apple platforms, the thread_amount function calls task_threads (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using vm_deallocate. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer. This issue has been patched in version 0.2.2.

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 2025-11-24 14:56 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7797 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/jzeuzs/thread-amount/security/…	x_refsource_CONFIRM
https://github.com/jzeuzs/thread-amount/pull/29	x_refsource_MISC
https://github.com/jzeuzs/thread-amount/commit/28…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
jzeuzs	thread-amount	Affected: < 0.2.2	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-65947",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-24T14:56:11.090976Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-11-24T14:56:27.822Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "thread-amount",
          "vendor": "jzeuzs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.2.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "thread-amount is a tool that gets the amount of threads in the current process. Prior to version 0.2.2, there are resource leaks when querying thread counts on Windows and Apple platforms. In Windows platforms, the thread_amount function calls CreateToolhelp32Snapshot but fails to close the returned HANDLE using CloseHandle. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached. In Apple platforms, the thread_amount function calls task_threads (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using vm_deallocate. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer. This issue has been patched in version 0.2.2."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-772",
              "description": "CWE-772: Missing Release of Resource after Effective Lifetime",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-21T22:15:30.181Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2"
        },
        {
          "name": "https://github.com/jzeuzs/thread-amount/pull/29",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jzeuzs/thread-amount/pull/29"
        },
        {
          "name": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5"
        }
      ],
      "source": {
        "advisory": "GHSA-jf9p-2fv9-2jp2",
        "discovery": "UNKNOWN"
      },
      "title": "thread-amount is Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-65947",
    "datePublished": "2025-11-21T22:15:30.181Z",
    "dateReserved": "2025-11-18T16:14:56.691Z",
    "dateUpdated": "2025-11-24T14:56:27.822Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-65947",
      "date": "2026-10-26",
      "epss": "0.00371",
      "percentile": "0.30812"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "thread-amount",
                "vendor": "jzeuzs",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 0.2.2"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "thread-amount is a tool that gets the amount of threads in the current process. Prior to version 0.2.2, there are resource leaks when querying thread counts on Windows and Apple platforms. In Windows platforms, the thread_amount function calls CreateToolhelp32Snapshot but fails to close the returned HANDLE using CloseHandle. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached. In Apple platforms, the thread_amount function calls task_threads (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using vm_deallocate. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer. This issue has been patched in version 0.2.2."
          },
          {
            "lang": "es",
            "value": "thread-amount es una herramienta que obtiene la cantidad de hilos en el proceso actual. Versiones anteriores a la 0.2.2, existen fugas de recursos al consultar el recuento de hilos en plataformas Windows y Apple. En plataformas Windows, la funci\u00f3n thread_amount llama a CreateToolhelp32Snapshot pero no cierra el HANDLE devuelto usando CloseHandle. Llamadas repetidas a esta funci\u00f3n har\u00e1n que el recuento de handles del proceso crezca indefinidamente, lo que eventualmente conducir\u00e1 a inestabilidad del sistema o terminaci\u00f3n del proceso cuando se alcance el l\u00edmite de handles. En plataformas Apple, la funci\u00f3n thread_amount llama a task_threads (a trav\u00e9s de las API del kernel Mach) que asigna memoria para la lista de hilos. La funci\u00f3n no desasigna esta memoria usando vm_deallocate. Llamadas repetidas resultar\u00e1n en una fuga de memoria constante, lo que eventualmente har\u00e1 que el proceso sea terminado por el eliminador OOM (Out of Memory). Este problema ha sido parcheado en la versi\u00f3n 0.2.2."
          }
        ],
        "id": "CVE-2025-65947",
        "lastModified": "2026-10-18T20:10:00.110",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.7,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-65947",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-24T14:56:11.090976Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-11-21T23:15:45.373",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jzeuzs/thread-amount/pull/29"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-400"
              },
              {
                "lang": "en",
                "value": "CWE-772"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-25T16:11:41+00:00",
      "cve": "CVE-2025-65947",
      "id": "CVE-2025-65947",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "thread-amount is Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-65947.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-65947",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-11-24T14:56:11.090976Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-11-24T14:56:17.780Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "thread-amount",
              "vendor": "jzeuzs",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 0.2.2"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "thread-amount is a tool that gets the amount of threads in the current process. Prior to version 0.2.2, there are resource leaks when querying thread counts on Windows and Apple platforms. In Windows platforms, the thread_amount function calls CreateToolhelp32Snapshot but fails to close the returned HANDLE using CloseHandle. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached. In Apple platforms, the thread_amount function calls task_threads (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using vm_deallocate. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer. This issue has been patched in version 0.2.2."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 8.7,
                "baseSeverity": "HIGH",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "vectorString": "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",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-400",
                  "description": "CWE-400: Uncontrolled Resource Consumption",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-772",
                  "description": "CWE-772: Missing Release of Resource after Effective Lifetime",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-11-21T22:15:30.181Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2"
            },
            {
              "name": "https://github.com/jzeuzs/thread-amount/pull/29",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/jzeuzs/thread-amount/pull/29"
            },
            {
              "name": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5"
            }
          ],
          "source": {
            "advisory": "GHSA-jf9p-2fv9-2jp2",
            "discovery": "UNKNOWN"
          },
          "title": "thread-amount is Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2025-65947",
        "datePublished": "2025-11-21T22:15:30.181Z",
        "dateReserved": "2025-11-18T16:14:56.691Z",
        "dateUpdated": "2025-11-24T14:56:27.822Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2025-65947

Vulnerability from fkie_nvd - Published: 2025-11-21 23:15 - Updated: 2026-10-18 20:10

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

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5
	security-advisories@github.com	https://github.com/jzeuzs/thread-amount/pull/29
	security-advisories@github.com	https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "thread-amount",
          "vendor": "jzeuzs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.2.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "thread-amount is a tool that gets the amount of threads in the current process. Prior to version 0.2.2, there are resource leaks when querying thread counts on Windows and Apple platforms. In Windows platforms, the thread_amount function calls CreateToolhelp32Snapshot but fails to close the returned HANDLE using CloseHandle. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached. In Apple platforms, the thread_amount function calls task_threads (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using vm_deallocate. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer. This issue has been patched in version 0.2.2."
    },
    {
      "lang": "es",
      "value": "thread-amount es una herramienta que obtiene la cantidad de hilos en el proceso actual. Versiones anteriores a la 0.2.2, existen fugas de recursos al consultar el recuento de hilos en plataformas Windows y Apple. En plataformas Windows, la funci\u00f3n thread_amount llama a CreateToolhelp32Snapshot pero no cierra el HANDLE devuelto usando CloseHandle. Llamadas repetidas a esta funci\u00f3n har\u00e1n que el recuento de handles del proceso crezca indefinidamente, lo que eventualmente conducir\u00e1 a inestabilidad del sistema o terminaci\u00f3n del proceso cuando se alcance el l\u00edmite de handles. En plataformas Apple, la funci\u00f3n thread_amount llama a task_threads (a trav\u00e9s de las API del kernel Mach) que asigna memoria para la lista de hilos. La funci\u00f3n no desasigna esta memoria usando vm_deallocate. Llamadas repetidas resultar\u00e1n en una fuga de memoria constante, lo que eventualmente har\u00e1 que el proceso sea terminado por el eliminador OOM (Out of Memory). Este problema ha sido parcheado en la versi\u00f3n 0.2.2."
    }
  ],
  "id": "CVE-2025-65947",
  "lastModified": "2026-10-18T20:10:00.110",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-65947",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-11-24T14:56:11.090976Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-11-21T23:15:45.373",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/jzeuzs/thread-amount/pull/29"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-772"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-JF9P-2FV9-2JP2

Vulnerability from github – Published: 2025-11-21 18:19 – Updated: 2025-11-27 07:53

Summary

thread-amount Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS

Details

Affected versions of this crate contain resource leaks when querying thread counts on Windows and Apple platforms.

Windows

The thread_amount function calls CreateToolhelp32Snapshot but fails to close the returned HANDLE using CloseHandle. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached.

macOS / iOS

The thread_amount function calls task_threads (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using vm_deallocate. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer.

Impact

Long-running applications (such as servers, daemons, or monitoring tools) that use this crate to periodically check thread counts will eventually crash due to resource exhaustion.

Resources

https://github.com/jzeuzs/thread-amount/pull/29

Severity

7.5 (High)


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

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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "thread-amount"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-65947"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-772"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-21T18:19:40Z",
    "nvd_published_at": "2025-11-21T23:15:45Z",
    "severity": "HIGH"
  },
  "details": "Affected versions of this crate contain resource leaks when querying thread counts on Windows and Apple platforms.\n\n### Windows\nThe `thread_amount` function calls `CreateToolhelp32Snapshot` but fails to close the returned `HANDLE` using `CloseHandle`. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached.\n\n### macOS / iOS\nThe `thread_amount` function calls `task_threads` (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using `vm_deallocate`. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer.\n\n### Impact\nLong-running applications (such as servers, daemons, or monitoring tools) that use this crate to periodically check thread counts will eventually crash due to resource exhaustion.\n\n### Resources\n\n- https://github.com/jzeuzs/thread-amount/pull/29",
  "id": "GHSA-jf9p-2fv9-2jp2",
  "modified": "2025-11-27T07:53:32Z",
  "published": "2025-11-21T18:19:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-65947"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jzeuzs/thread-amount/pull/29"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jzeuzs/thread-amount"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0125.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "thread-amount Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS"
}

RUSTSEC-2025-0125 (GHSA-JF9P-2FV9-2JP2)

Vulnerability from osv_rustsec – Published: 2025-11-22 12:00 – Updated: 2025-11-22 12:29 – Source website

Summary

Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS

Details

Affected versions of this crate contain resource leaks when querying thread counts on Windows and Apple platforms.

Windows

macOS / iOS

Impact

Long-running applications (such as servers, daemons, or monitoring tools) that use this crate to periodically check thread counts will eventually crash due to resource exhaustion.

Mitigation

Upgrade to version 0.2.2 or later, which properly releases OS resources.

Severity

7.5 (High)


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

References

URL

Type

	https://crates.io/crates/thread-amount	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2025-0125.html	ADVISORY
	https://github.com/jzeuzs/thread-amount/pull/29	WEB

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "thread_amount::is_single_threaded",
            "thread_amount::thread_amount"
          ],
          "os": [
            "windows",
            "macos",
            "ios"
          ]
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "thread-amount",
        "purl": "pkg:cargo/thread-amount"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.2.2"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "GHSA-jf9p-2fv9-2jp2",
    "CVE-2025-65947"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of this crate contain resource leaks when querying thread counts on Windows and Apple platforms.\n\n### Windows\nThe `thread_amount` function calls `CreateToolhelp32Snapshot` but fails to close the returned `HANDLE` using `CloseHandle`. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached.\n\n### macOS / iOS\nThe `thread_amount` function calls `task_threads` (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using `vm_deallocate`. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer.\n\n### Impact\nLong-running applications (such as servers, daemons, or monitoring tools) that use this crate to periodically check thread counts will eventually crash due to resource exhaustion.\n\n### Mitigation\nUpgrade to version `0.2.2` or later, which properly releases OS resources.",
  "id": "RUSTSEC-2025-0125",
  "modified": "2025-11-22T12:29:36Z",
  "published": "2025-11-22T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/thread-amount"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0125.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jzeuzs/thread-amount/pull/29"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-65947 (GCVE-0-2025-65947)

FKIE_CVE-2025-65947

GHSA-JF9P-2FV9-2JP2

Windows

macOS / iOS

Impact

Resources

RUSTSEC-2025-0125 (GHSA-JF9P-2FV9-2JP2)

Windows

macOS / iOS

Impact

Mitigation

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour