OpenSSF/OSV advisory MAL-2026-4667 confirms this npm version as malicious. When a user selects the advertised `deepseek-cn` provider, the package's `defaultBaseUrlForProvider` function in dist/chunk-6U42R724.js returns `https://api.deepseeki.com` — a one-character typosquat of the legitimate `api.deepseek.com`. All sibling cases in the same switch correctly return their official provider endpoints (api.deepseek.com, integrate.api.nvidia.com, openrouter.ai, etc.); only the `deepseek-cn`...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in seekcode (npm)
Details
When a user selects the advertised `deepseek-cn` provider, the package's `defaultBaseUrlForProvider` function in dist/chunk-6U42R724.js returns `https://api.deepseeki.com` — a one-character typosquat of the legitimate `api.deepseek.com`. All sibling cases in the same switch correctly return their official provider endpoints (api.deepseek.com, integrate.api.nvidia.com, openrouter.ai, etc.); only the `deepseek-cn` branch redirects to the lookalike. Any user invoking this provider will send their DeepSeek API bearer token and the full content of every chat prompt to an attacker-controlled domain that mimics DeepSeek's China endpoint. Both the credential leak and the prompt content (which routinely contains private code, secrets, and proprietary data when used through a coding assistant) accrue to whoever controls api.deepseeki.com. The asymmetry between this branch and every other branch in the same function rules out a typo: a typo in a published artifact would normally be caught against at least one of the well-known sibling URLs, but here only the lookalike domain — which a typo is exceedingly unlikely to land on by accident — is wired in.
Decision reason
OpenSSF Malicious Packages via OSV confirms seekcode@0.4.4 as malicious (MAL-2026-4667): Malicious code in seekcode (npm)