CVE-2026-84202

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84202", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-01T11:03:27.973Z", "datePublished": "2026-09-01T15:18:57.372Z", "dateUpdated": "2026-09-01T17:37:34.765Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-01T15:18:57.372Z"}, "datePublic": "2026-03-30T00:00:00.000Z", "title": "ModelScope through 1.40.0 Unsafe YAML Deserialization in Model Config Loading", "descriptions": [{"lang": "en", "value": "ModelScope uses PyYAML's unsafe yaml.Loader to parse model configuration files, allowing arbitrary code execution through Python object construction tags. Attackers can craft malicious model repositories with poisoned configuration files that execute code when loaded by users."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Deserialization of Untrusted Data", "cweId": "CWE-502", "type": "CWE"}]}], "affected": [{"vendor": "modelscope", "product": "modelscope", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/modelscope", "versions": [{"version": "0", "lessThanOrEqual": "1.40.0", "status": "affected", "versionType": "semver"}], "collectionURL": "https://pypi.org/project/modelscope/", "repo": "https://github.com/modelscope/modelscope"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/modelscope/modelscope", "tags": ["product"]}, {"url": "https://github.com/modelscope/modelscope/issues/1660", "tags": ["issue-tracking"]}, {"url": "https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/audio/tts/voice.py", "tags": ["technical-description"]}, {"url": "https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/multi_modal/mplug/configuration_mplug.py", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: ModelScope through 1.40.0 Unsafe YAML Deserialization in Model Config Loading", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/modelscope-through-1.40.0-unsafe-yaml-deserialization-in-model-config-loading"}], "credits": [{"lang": "en", "value": "Vancir", "type": "finder"}, {"lang": "en", "value": "Michael Holmquist", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"references": [{"url": "https://github.com/modelscope/modelscope/issues/1660", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-01T17:36:19.252848Z", "id": "CVE-2026-84202", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T17:37:34.765Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-84202", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-01T17:36:19.252848Z"}}}], "references": [{"url": "https://github.com/modelscope/modelscope/issues/1660", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T17:37:23.996Z"}}], "cna": {"title": "ModelScope through 1.40.0 Unsafe YAML Deserialization in Model Config Loading", "credits": [{"lang": "en", "type": "finder", "value": "Vancir"}, {"lang": "en", "type": "finder", "value": "Michael Holmquist"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"repo": "https://github.com/modelscope/modelscope", "vendor": "modelscope", "product": "modelscope", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.40.0"}], "packageURL": "pkg:pypi/modelscope", "collectionURL": "https://pypi.org/project/modelscope/", "defaultStatus": "unaffected"}], "datePublic": "2026-03-30T00:00:00.000Z", "references": [{"url": "https://github.com/modelscope/modelscope", "tags": ["product"]}, {"url": "https://github.com/modelscope/modelscope/issues/1660", "tags": ["issue-tracking"]}, {"url": "https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/audio/tts/voice.py", "tags": ["technical-description"]}, {"url": "https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/multi_modal/mplug/configuration_mplug.py", "tags": ["technical-description"]}, {"url": "https://www.vulncheck.com/advisories/modelscope-through-1.40.0-unsafe-yaml-deserialization-in-model-config-loading", "name": "VulnCheck Advisory: ModelScope through 1.40.0 Unsafe YAML Deserialization in Model Config Loading", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "ModelScope uses PyYAML's unsafe yaml.Loader to parse model configuration files, allowing arbitrary code execution through Python object construction tags. Attackers can craft malicious model repositories with poisoned configuration files that execute code when loaded by users."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-01T15:18:57.372Z"}}}, "cveMetadata": {"cveId": "CVE-2026-84202", "state": "PUBLISHED", "dateUpdated": "2026-09-01T17:37:34.765Z", "dateReserved": "2026-09-01T11:03:27.973Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-09-01T15:18:57.372Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://pypi.org/project/modelscope/", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/modelscope", "product": "modelscope", "repo": "https://github.com/modelscope/modelscope", "vendor": "modelscope", "versions": [{"lessThanOrEqual": "1.40.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ModelScope uses PyYAML's unsafe yaml.Loader to parse model configuration files, allowing arbitrary code execution through Python object construction tags. Attackers can craft malicious model repositories with poisoned configuration files that execute code when loaded by users."}], "id": "CVE-2026-84202", "lastModified": "2026-09-08T20:18:59.270", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-84202", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-01T17:36:19.252848Z", "version": "2.0.3"}}]}, "published": "2026-09-01T16:17:34.450", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/modelscope/modelscope"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/audio/tts/voice.py"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/multi_modal/mplug/configuration_mplug.py"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/modelscope/modelscope/issues/1660"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/modelscope-through-1.40.0-unsafe-yaml-deserialization-in-model-config-loading"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/modelscope/modelscope/issues/1660"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{"bugzilla": {"description": "modelscope: ModelScope: Arbitrary code execution via unsafe YAML deserialization", "id": "2526873", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2526873"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-94", "details": ["A flaw was found in ModelScope. This vulnerability arises from the use of PyYAML's unsafe yaml.Loader when parsing model configuration files. A remote attacker can exploit this by crafting malicious model repositories containing poisoned configuration files. When these files are loaded by a user, it can lead to arbitrary code execution."], "name": "CVE-2026-84202", "package_state": [{"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-kserve-agent-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-kserve-controller-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-kserve-router-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-kserve-storage-initializer-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-09-01T15:18:57Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-84202\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-84202\nhttps://github.com/modelscope/modelscope\nhttps://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/audio/tts/voice.py\nhttps://github.com/modelscope/modelscope/blob/v1.40.0/modelscope/models/multi_modal/mplug/configuration_mplug.py\nhttps://github.com/modelscope/modelscope/issues/1660\nhttps://www.vulncheck.com/advisories/modelscope-through-1.40.0-unsafe-yaml-deserialization-in-model-config-loading"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.40.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "modelscope", "source": "cna", "vendor": "modelscope"}, "product": "modelscope", "vendor": "modelscope"}], "created": "2026-09-02T03:15:04.320798+00:00", "updated": "2026-09-02T05:00:13.475766+00:00", "vendors": ["modelscope", "modelscope$PRODUCT$modelscope"]}