{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-40250",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-04-10T17:31:45.786Z",
        "datePublished": "2026-04-21T01:33:00.212Z",
        "dateUpdated": "2026-04-23T03:55:57.543Z"
    },
    "containers": {
        "cna": {
            "title": "OpenEXR has integer overflow in DWA decoder outBufferEnd pointer arithmetic (missed variant of CVE-2026-34589)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-190",
                            "lang": "en",
                            "description": "CWE-190: Integer Overflow or Wraparound",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.4,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m5qw-23x2-6phj",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m5qw-23x2-6phj"
                },
                {
                    "name": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.8"
                },
                {
                    "name": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.10",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.10"
                },
                {
                    "name": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.10",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.10"
                }
            ],
            "affected": [
                {
                    "vendor": "AcademySoftwareFoundation",
                    "product": "openexr",
                    "versions": [
                        {
                            "version": ">= 3.2.0, < 3.2.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.3.0, < 3.3.10",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.4.0, < 3.4.10",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-04-21T01:33:00.212Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1040` performs `chan->width * chan->bytes_per_element` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1040`."
                }
            ],
            "source": {
                "advisory": "GHSA-m5qw-23x2-6phj",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-22T00:00:00+00:00",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3",
                                "id": "CVE-2026-40250"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-23T03:55:57.543Z"
                }
            }
        ]
    }
}