Incident
Published 2026-09-23
Verified 2026-09-23

MemTensor MemOS supply chain: npm + PyPI releases drop sckit credential stealer (C2 skyleen[.]fr)

Socket (23 September 2026; corroborated by Aikido, SafeDep, StepSecurity; THN amplify same day) reports compromise of MemTensor MemOS packaging: npm @memtensor/memos-cloud-openclaw-plugin versions 0.1.21, 0.1.23, and 0.1.25 (0.1.25 tagged latest; 0.1.22/0.1.24 match last-good 0.1.20 aside from version strings; last known-good 0.1.20) and PyPI MemoryOS 2.0.34 (latest; last pre-compromise 2.0.33). Malicious builds bundle cross-platform Go implant sckit (linux/macOS/Windows x64+arm64) that launches on OpenClaw gateway start / memory-recall (npm) or on import memos (PyPI), harvests developer/CI secrets (npm/PyPI/GitHub/GitLab/AWS/Vault/SSH and related env tokens), and phones home to skyleen[.]fr. Initial access via malicious GitHub commits altering release tooling; Socket could not yet confirm how registry publish access was obtained. Treat any host that loaded the bad versions as compromised; worm-like republish strings noted but broader package impact unconfirmed. Primary: Socket analysis; secondary: The Hacker News 23 Sep 2026.

Product
MemTensor MemOS — npm @memtensor/memos-cloud-openclaw-plugin; PyPI MemoryOS
Versions
Malicious: npm 0.1.21 / 0.1.23 / 0.1.25; PyPI MemoryOS 2.0.34. Pin/remove to npm 0.1.20 and PyPI 2.0.33 (or uninstall) until maintainers publish verified clean latest.
Exploited in Australia?
unknown
Patch to
Pin npm to 0.1.20 and PyPI MemoryOS to 2.0.33 (or remove); treat hosts/CI that loaded bad versions as compromised — rotate npm/PyPI/GitHub/GitLab/AWS/Vault/SSH and related secrets; kill sckit; delete ~/.openclaw/.cache/runtime/ and ~/.memos/.cache/runtime/; block skyleen[.]fr and review egress since 23 Sep 2026; audit own package publishes if registry tokens were on affected hosts

Primary: Socket — MemTensor npm/PyPI compromise / sckit stealer (23 Sep 2026) · Vendor: Socket Research — MemTensor MemOS supply chain · The Hacker News — MemTensor sckit (23 Sep 2026)

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