{"dataType":"CVE_RECORD","dataVersion":"1.0","cveMetadata":{"cveId":"GCVE-110-OSM-2026-14435","assignerOrgId":"","assignerShortName":"Vulnetix","state":"PUBLISHED","datePublished":"2026-10-26T00:19:46Z","dateUpdated":"2026-11-04T04:58:56Z","dateReserved":""},"containers":{"cna":{"providerMetadata":null,"title":"","descriptions":[{"lang":"en","value":"APT malware detected: Contagious Interview 2026. Associated with threat actor(s): Famous Chollima/UNC5267 (DPRK). Behaviors: data exfiltration, code execution, obfuscated code.\n\nEXFIL\n  - Data Encoding for Exfiltration in build-cache.mjs: \"btoa(\"\n\nOBFUSCATION\n  - Dynamic Base64 Decoding in build-cache.mjs: \"atob(_0x313c8)\"\n  - Obfuscation: function to array replacements in build-cache.mjs\n  - Dynamic Base64 Decoding in cache-sweep.mjs: \"atob(_0xf0a19163[\"\n  - Dynamic Base64 Decoding in cache-warm.mjs: \"atob(_0x9be890207[\"\n  - Dynamic Base64 Decoding in workspaces.js: \"atob(_0x060c214e7[\"\n  - Obfuscation (osm-deobfuscator): obfuscator-io in build-cache.mjs\n  - Base64 Encoded Payload in build-cache.mjs: \"\"tpbPnc/Xz4eegoOMmYzPwc+Oz9fPrruowN/d39vA2trZ3NjPwc+bz9fP38Pdw9jPkMGWz53P18+bgN/...\"\n  - String Array Obfuscation in vendor/tailwindcss/dist/chunk-C2OYBFIH.mjs: \"[\"black\",\"silver\",\"gray\",\"white\",\"maroon\",\"red\",\"purple\",\"fuchsia\",\"green\",\"lime...\"\n  (+14 more)\n\nADDITIONAL FINDINGS\n  - Campaign marker: Contagious Interview 2026 in cache-warm.mjs: \"_0x1c18\"\n  - Silent Process Execution in build-cache.mjs: \"windowsHide: true\"\n  - Platform Detection with Data Collection in build-cache.mjs: \"JSON.stringify({ repos: _0xfe670.repos\"\n  - Detached Child Process Payload in cache-warm.mjs: \"spawn(_0x45aac.execPath, [_0x165d86e.join(_0x3b0f58d4,_0x012de1)], { detached: t...\"\n  - Dynamic Code Execution in vendor/tailwindcss/dist/lib.js: \"exec(e)\"\n  - Brand New Package\n  (+2 more)\n\nPAYLOAD FILES\n  workspaces.js (+ cache-warm.mjs)","supportingMedia":null}],"references":[{"url":"https://opensourcemalware.com/threats/0f32e711-2f3b-440c-a187-8177be798f18","name":"Malicious npm package: birch-css-utils","tags":["advisory"]},{"url":"https://registry.npmjs.org/birch-css-utils","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:C/C:H/I:H/A:H","baseScore":9.6,"baseSeverity":"CRITICAL"},"cvssV4_0":null,"other":null}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Embedded Malicious Code","cweId":"CWE-506","type":"CWE"}]}],"affected":[{"vendor":"unknown","product":"birch-css-utils","collectionURL":"https://registry.npmjs.org","packageName":"birch-css-utils","repo":"","defaultStatus":"affected","versions":[{"version":"all","status":"affected","versionType":"","lessThan":"","lessThanOrEqual":"","changes":null}],"cpes":null,"modules":null,"programFiles":null,"platforms":null}],"cpeApplicability":null,"rejectedReasons":null,"replacedBy":null},"adp":null}}