{"dataType":"CVE_RECORD","dataVersion":"1.0","cveMetadata":{"cveId":"GCVE-110-OSM-2026-14197","assignerOrgId":"","assignerShortName":"Vulnetix","state":"PUBLISHED","datePublished":"2026-10-27T09:00:52Z","dateUpdated":"2026-10-26T20:47:34Z","dateReserved":""},"containers":{"cna":{"providerMetadata":null,"title":"","descriptions":[{"lang":"en","value":"This package implements a textbook NuGet supply-chain attack. The MSBuild targets file auto-executes `tools/payload.ps1` via a `BeforeTargets=\"Build\"` hook on every consumer build, using `-ExecutionPolicy Bypass` to suppress PowerShell's safety guardrails. The script is literally named `payload.ps1` — not a build helper, not a test runner — and contains non-Latin (Arabic/Farsi/Urdu) script content, consistent with comment-based obfuscation or attacker attribution. The target is deceptively named `DepwatchTelemetry` to blend in as legitimate instrumentation. The publisher `blazo111` has four packages all using similar env-config theming (EnvParse.Kit, DotEnv.Lite, Hardhat.Env, Mcp.EnvTools), consistent with a coordinated campaign seeding multiple plausible-sounding library names. Static analysis did not recover payload.ps1 content or network IOCs, so confirmed exfil endpoints cannot be listed, but the mechanism — a disguised build hook auto-running a file explicitly named 'payload' with policy bypass — is unambiguous in intent.\n\nENTRY\n  build/Mcp.EnvTools.targets (nuget-build-hook: build/Mcp.EnvTools.targets)\n\nADDITIONAL FINDINGS\n  - MSBuild Exec Task in build/Mcp.EnvTools.targets: \"\u003cExec Command=\"powershell\"\n  - Brand New Package\n\nPAYLOAD FILES\n  build/Mcp.EnvTools.targets","supportingMedia":null}],"references":[{"url":"https://opensourcemalware.com/threats/befc6bc3-2ce6-4f97-a5ab-453e75bb1dd1","name":"Malicious nuget package: Hardhat.Env","tags":["advisory"]},{"url":"https://www.nuget.org/Hardhat.Env","name":"","tags":["vendor"]}],"metrics":[{"format":"CVSS_V3","scenarios":null,"cvssV2_0":null,"cvssV3_0":null,"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","baseScore":8.8,"baseSeverity":"HIGH"},"cvssV4_0":null,"other":null}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Embedded Malicious Code","cweId":"CWE-506","type":"CWE"}]}],"affected":[{"vendor":"unknown","product":"Hardhat.Env","collectionURL":"https://www.nuget.org","packageName":"Hardhat.Env","repo":"","defaultStatus":"affected","versions":[{"version":"1.0.0","status":"affected","versionType":"","lessThan":"","lessThanOrEqual":"","changes":null}],"cpes":null,"modules":null,"programFiles":null,"platforms":null}],"cpeApplicability":null,"rejectedReasons":null,"replacedBy":null},"adp":null}}