EUVD-2026-69289
GHSA-pq5m-26pg-cxxp
Severity by source
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
Network-delivered via public model repository; user must load model (UI:R); no privileges required to publish malicious repo; full code execution yields C/I/A:H.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
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.
Articles & Coverage 2
AnalysisAI
Unsafe PyYAML deserialization in ModelScope through v1.40.0 enables remote code execution when users load model configuration files from attacker-controlled repositories. The vulnerability exists in at least two documented components - the audio TTS voice module (voice.py) and the multimodal mPLUG configuration loader (configuration_mplug.py) - which use PyYAML's unsafe yaml.Loader that processes Python object construction tags such as !!python/object: during deserialization. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively load a model from an attacker-controlled repository using the ModelScope SDK - specifically via code paths that invoke yaml.Loader in the audio TTS (voice.py) or multimodal mPLUG (configuration_mplug.py) modules; other yaml.Loader usages in the codebase may introduce additional paths. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.7 reflects a high-severity, network-accessible, low-complexity vulnerability requiring only passive user interaction (UI:P - the victim must load a model). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No specific patched version has been confirmed in the available data - the VulnCheck advisory identifies the issue through v1.40.0 but does not cite a fixed release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct an inventory of all systems running ModelScope through v1.40.0, identify external model repository dependencies, and immediately restrict model loading to internal, controlled repositories only. …
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SUSE
Severity: ImportantShare
External POC / Exploit Code
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