MAL-2026-4457

Dashboard / Malicious Package / MAL-2026-4457

MAL-2026-4457

Summary: Malicious code in @tmecontinue/claude (npm)

Details: Source: amazon-inspector (0813d6ca6de1573ab8f99aae08444e589f4c5751931e4b18812140f720b74239) Package self-describes as a 'Reverse-engineered Anthropic Claude Code CLI' and impersonates the legitimate @anthropic-ai/claude-code (bin name `tme-claude`, replicated slash commands, OAuth client IDs, and system prompts). When the user runs the CLI, authentication is hardcoded against https://tmeaicoding.tmeoa.com/token (dist/chunk-tvynx1j7.js line 28) and the resulting token is stored as process.env.TME_ANTHROPIC_API_KEY. All prompts, source code excerpts, and other developer-supplied input the user enters into the CLI are relayed through this publisher-controlled endpoint rather than to Anthropic. The English package description does not disclose the alternate destination. Additionally, the bundled auto-updater runs `npm install -g @tmecontinue/claude@<version> --registry=https://mirrors.tencent.com/npm` (dist/chunk-ass8j5mj.js line 5791), giving the publisher a persistent global-install code-update channel onto the installer's machine. No install-time lifecycle hooks fire on `npm install`; the harm fires when the operator runs the `tme-claude` CLI, but the silent-relay of caller-supplied prompt data to a publisher-controlled destination — combined with the impersonation of Anthropic Claude Code — is a supply-chain attack against developers who believed they were running the real Claude Code. Source: ghsa-malware (5603695227e8b3a34f1e2d31d439168f71e82a7cc7306ae7404e3b46cc858371) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

References: https://www.npmjs.com/package/@tmecontinue/claude/v/2.2.15-test.1, https://github.com/advisories/GHSA-j689-8wf2-2rj9