CVE-2026-104266

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Source
https://cve.org/CVERecord?id=CVE-2026-104266
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104266.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-104266
Aliases
Downstream
Published
2026-10-15T17:13:26Z
Modified
2026-10-28T02:31:11Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
tinytag: Infinite loop when parsing certain M4A files containing invalid atoms
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104266.json"
}
References

Affected packages

Git / github.com/tinytag/tinytag

Affected ranges

Type
GIT
Repo
https://github.com/tinytag/tinytag
Events
Introduced
cc786892205f321a139412f830d714432b830f2f
Fixed
912d27f5f65d6d1cc44ef6a9797d0d6d9e9d6b7d
Fixed
9ada221ba44990cb02cd9002d992186e037b515e
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.0.0"
                },
                {
                    "fixed": "2.3.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "9ada221ba44990cb02cd9002d992186e037b515e"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "2.3.0",
            "range": [
                {
                    "fixed": "912d27f5f65d6d1cc44ef6a9797d0d6d9e9d6b7d"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

2.*
2.0.0
2.1.0
2.1.1
2.1.2
2.2.0
2.2.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104266.json"