VDB
GCVE-110-OSM-2026-235
GCVE-110-OSM-2026-235
Advisory PublishedCVSS 9.6/10
Malicious Oracle Cloud Infrastructure file storage SDK. Supply chain attack targeting file management systems with MSBuild-based code execution.
Exploits NuGet's MSBuild integration by placing malicious code in .targets files as inline tasks. When projects build, MSBuild automatically imports and executes these tasks, downloading .NET executables from throwaway GitHub repositories with embedded obfuscated command-line payloads.
Weaknesses (CWE)
CWE-506Embedded Malicious Code
Risk Scores
CVSS 3.1
9.6/10
Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| unknown | Tessa.Linux.V2 | all (affected) | — |
| unknown | OCI.DotNetSDK.File.storage | all (affected) | — |
| unknown | Tessa.Server.Net | all (affected), * (affected), all (affected), * (affected), all (affected), all (affected), all (affected), all (affected) | — |
| unknown | demozecosso | all (affected) | — |
| unknown | Tessa.Core | all (affected), all (affected), * (affected), all (affected), * (affected), * (affected) | — |
Aliases
References
Malicious nuget package: Tessa.Core
advisory
Malicious pypi package: demozecosso
advisory
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