{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-104266",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-01T19:04:39.707Z",
        "datePublished": "2026-10-15T17:13:26.636Z",
        "dateUpdated": "2026-10-21T01:00:05.989Z"
    },
    "containers": {
        "cna": {
            "title": "tinytag: Infinite loop when parsing certain M4A files containing invalid atoms",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-835",
                            "lang": "en",
                            "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg"
                },
                {
                    "name": "https://github.com/tinytag/tinytag/pull/326",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/tinytag/tinytag/pull/326"
                },
                {
                    "name": "https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e"
                },
                {
                    "name": "https://github.com/tinytag/tinytag/releases/tag/2.3.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/tinytag/tinytag/releases/tag/2.3.0"
                }
            ],
            "affected": [
                {
                    "vendor": "tinytag",
                    "product": "tinytag",
                    "versions": [
                        {
                            "version": ">= 2.0.0, < 2.3.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-15T17:13:26.636Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "tinytag is a Python library for reading audio file metadata. From 2.0.0 until 2.3.0, an M4A file containing a sub-atom with a size of zero inside a ---- atom can cause the metadata parser to stop advancing through the input. The custom-field atom traversal repeatedly processes the malformed location, causing an infinite loop and denying service to a program that reads the crafted file. This issue is fixed in version 2.3.0."
                }
            ],
            "source": {
                "advisory": "GHSA-24cc-9352-h2pg",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-21T00:59:51.994856Z",
                                "id": "CVE-2026-104266",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-21T01:00:05.989Z"
                }
            }
        ]
    }
}