Vulnerability-Lookup

PYSEC-2026-723

Vulnerability from pysec - Published: 2026-07-02 14:13 - Updated: 2026-07-06 07:37

Details

An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.

Severity

6.5 (Medium)


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

Impacted products

Name	purl
opencv-contrib-python-headless	pkg:pypi/opencv-contrib-python-headless

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "opencv-contrib-python-headless",
        "purl": "pkg:pypi/opencv-contrib-python-headless"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0.14",
        "3.4.1.15",
        "3.4.10.37",
        "3.4.11.39",
        "3.4.11.41",
        "3.4.11.43",
        "3.4.11.45",
        "3.4.13.47",
        "3.4.14.51",
        "3.4.14.53",
        "3.4.15.55",
        "3.4.16.57",
        "3.4.16.59",
        "3.4.17.61",
        "3.4.17.63",
        "3.4.18.65",
        "3.4.2.17",
        "3.4.3.18",
        "3.4.4.19",
        "3.4.5.20",
        "3.4.6.27",
        "3.4.7.28",
        "3.4.8.29",
        "3.4.9.33",
        "4.0.0.21",
        "4.0.1.23",
        "4.0.1.24"
      ]
    }
  ],
  "aliases": [
    "CVE-2019-19624",
    "GHSA-jggw-2q6g-c3m6"
  ],
  "details": "An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.",
  "id": "PYSEC-2026-723",
  "modified": "2026-07-06T07:37:01.098845Z",
  "published": "2026-07-02T14:13:13.279329Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19624"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/issues/14554"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/cve-2019-19624"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencv/opencv-python"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv-python/releases/tag/25"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/opencv-contrib-python-headless"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-jggw-2q6g-c3m6"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Out-of-bounds Read in OpenCV"
}

CVE-2019-19624 (GCVE-0-2019-19624)

Vulnerability from cvelistv5 – Published: 2019-12-06 14:26 – Updated: 2024-08-05 02:25

Summary

An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

2 references

URL	Tags
https://github.com/opencv/opencv/issues/14554	x_refsource_MISC
https://github.com/opencv/opencv/commit/d1615ba11…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T02:25:12.094Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/opencv/opencv/issues/14554"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-12-06T14:26:56.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/opencv/opencv/issues/14554"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-19624",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/opencv/opencv/issues/14554",
              "refsource": "MISC",
              "url": "https://github.com/opencv/opencv/issues/14554"
            },
            {
              "name": "https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418",
              "refsource": "MISC",
              "url": "https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-19624",
    "datePublished": "2019-12-06T14:26:56.000Z",
    "dateReserved": "2019-12-06T00:00:00.000Z",
    "dateUpdated": "2024-08-05T02:25:12.094Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-JGGW-2Q6G-C3M6

Vulnerability from github – Published: 2021-10-12 22:22 – Updated: 2021-10-06 18:06

Summary

Out-of-bounds Read in OpenCV

Details

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.1.0.24"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "opencv-python"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.1.0.24"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "opencv-python-headless"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.1.0.24"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "opencv-contrib-python"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.1.0.24"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "opencv-contrib-python-headless"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.0.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-19624"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-10-06T18:06:55Z",
    "nvd_published_at": "2019-12-06T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.",
  "id": "GHSA-jggw-2q6g-c3m6",
  "modified": "2021-10-06T18:06:55Z",
  "published": "2021-10-12T22:22:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19624"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/issues/14554"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/cve-2019-19624"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencv/opencv-python"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv-python/releases/tag/25"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Out-of-bounds Read in OpenCV"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

PYSEC-2026-723

CVE-2019-19624 (GCVE-0-2019-19624)

GHSA-JGGW-2Q6G-C3M6

Tags

Sightings

Nomenclature