CVE-2026-104266

{"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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-104266", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-21T00:59:51.994856Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-21T00:59:59.515Z"}}], "cna": {"title": "tinytag: Infinite loop when parsing certain M4A files containing invalid atoms", "source": {"advisory": "GHSA-24cc-9352-h2pg", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "tinytag", "product": "tinytag", "versions": [{"status": "affected", "version": ">= 2.0.0, < 2.3.0"}]}], "references": [{"url": "https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg", "name": "https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/tinytag/tinytag/pull/326", "name": "https://github.com/tinytag/tinytag/pull/326", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e", "name": "https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/tinytag/tinytag/releases/tag/2.3.0", "name": "https://github.com/tinytag/tinytag/releases/tag/2.3.0", "tags": ["x_refsource_MISC"]}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-835", "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-15T17:13:26.636Z"}}}, "cveMetadata": {"cveId": "CVE-2026-104266", "state": "PUBLISHED", "dateUpdated": "2026-10-21T01:00:05.989Z", "dateReserved": "2026-10-01T19:04:39.707Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-10-15T17:13:26.636Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "tinytag", "vendor": "tinytag", "versions": [{"status": "affected", "version": ">= 2.0.0, < 2.3.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-104266", "lastModified": "2026-10-21T01:17:19.640", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-104266", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-21T00:59:51.994856Z", "version": "2.0.3"}}]}, "published": "2026-10-15T18:17:22.983", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e"}, {"source": "security-advisories@github.com", "url": "https://github.com/tinytag/tinytag/pull/326"}, {"source": "security-advisories@github.com", "url": "https://github.com/tinytag/tinytag/releases/tag/2.3.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "tinytag: tinytag: Denial of Service via infinite loop in M4A parser", "id": "2553619", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553619"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["A flaw was found in tinytag. A remote attacker can cause a Denial of Service (DoS) by supplying a specially crafted M4A audio file. When parsing a file containing a zero-sized sub-atom within a custom metadata atom, the parser fails to advance through the input stream, triggering an infinite loop and causing the application to hang."], "name": "CVE-2026-104266", "package_state": [{"cpe": "cpe:/a:redhat:lightspeed_core", "fix_state": "Fix deferred", "package_name": "lightspeed-core/rag-tool-cpu-rhel9", "product_name": "Lightspeed Core"}, {"cpe": "cpe:/a:redhat:lightspeed_core", "fix_state": "Fix deferred", "package_name": "lightspeed-core/rag-tool-cuda-12.9-rhel9", "product_name": "Lightspeed Core"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed:1", "fix_state": "Fix deferred", "package_name": "openshift-lightspeed/lightspeed-ocp-rag-rhel9", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed:1", "fix_state": "Fix deferred", "package_name": "openshift-lightspeed/lightspeed-service-api-rhel9", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed:1", "fix_state": "Fix deferred", "package_name": "openshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9", "product_name": "OpenShift Lightspeed"}], "public_date": "2026-10-15T17:13:26Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-104266\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-104266\nhttps://github.com/tinytag/tinytag/commit/9ada221ba44990cb02cd9002d992186e037b515e\nhttps://github.com/tinytag/tinytag/pull/326\nhttps://github.com/tinytag/tinytag/releases/tag/2.3.0\nhttps://github.com/tinytag/tinytag/security/advisories/GHSA-24cc-9352-h2pg"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0,2.3.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "tinytag", "source": "cna", "vendor": "tinytag"}, "product": "tinytag", "vendor": "tinytag"}], "created": "2026-10-16T06:45:14.858357+00:00", "updated": "2026-10-17T04:00:03.218514+00:00", "vendors": ["tinytag", "tinytag$PRODUCT$tinytag"]}