GCVE-110-OSM-2026-3989

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 11, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution, obfuscated code. [osmalyze-auto] Entrypoint: dist/cjs/index.cjs (main: dist/cjs/index.cjs) Payload: router_init.js Key findings: - Environment Variable Exfiltration in router_init.js: "process.env,_0x1dfe59=await _0x1ffb45[_0x25960e(0x1993)](fetch" - Silent Process Execution in dist/cjs/fileRoute.cjs: "{ silent: true" - Silent Process Execution in dist/esm/fileRoute.js: "{ silent: true" - Data Encoding for Exfiltration in dist/llms/rules/guide.d.ts: "btoa(" - Dynamic Base64 Decoding in dist/llms/rules/guide.d.ts: "atob(str)" IOCs: - urls: https://bundlephobia.com/result?p=@tanstack/react-router, https://bestofjs.org/projects/router, https://tanstack.com, https://tanstack.com/router, https://tanstack.com/router/latest/docs/framework/react/guide/document-head-management (+45 more) - domains: static.scarf.sh, 2Ftwitter.com, bundlephobia.com, bestofjs.org, bestofjs-serverless.now.sh (+39 more) - payloadFileHash: ab4fcadaec49c03278063dd269ea5eef82d24f2124a8e15d7b90f2fa8601266c

Download JSON Open in Console

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	@tanstack/react-router	1.169.8 (affected)	—

References

Malicious npm package: @tanstack/react-router

advisory

vendor

Browse GCVE Records

73,280 records in the GCVE database · Updated July 17, 2026

No matching records found.

Explore Further

Investigate this vulnerability in the interactive console or download the raw GCVE record.

Open in Console Download JSON