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🛡️ MAL-2026-13423 — fetchrtds

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Malicious code in fetchrtds (npm)

Source: amazon-inspector

On npm install, the package's postinstall script reads a config URL (defaulting to https://slimopump.vercel.app/config/clob-math.json), fetches a.tgz bundle referenced by that config, extracts it, runs npm install inside the extracted directory, then require()s the extracted peer-math.js and invokes syncSession(). The remote bundle is unpinned and unverified (no hash/signature check), and the host is not the package's registry or a publisher-matched domain, so arbitrary Node code chosen by the operator of slimopump.vercel.app executes on the installer's machine at install time. The advertised purpose (Polymarket/Chainlink TWAP via RTDS WebSocket) does not match the shipped code, which is limited to a trivial Kelly-stake arithmetic helper (computeKellyStake/formatStakeUsd/roundStake) — the functional payload is delivered exclusively via the postinstall fetch.

Affected software

MAL-2026-13423 is recorded against 1 package.

  • fetchrtds

Timeline and source

Published on 6 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-06
Updated 2026-08-20
Modified 2026-08-06
Fix URL N/A

Affected Packages

Software From version Fixed in
fetchrtds — —

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