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🛡️ MAL-2026-4726 — weavedb-tools

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

Description

Malicious code in weavedb-tools (npm)

Source: amazon-inspector

package.json declares "preinstall": "./dist/runtime.node", which directly executes a ~976KB Linux ELF binary at every npm install. The .node extension (normally reserved for Node native addons loaded via require()) is misused here — the file is invoked as a shell command, not loaded as an addon, a naming choice that evades scanners which treat .node files as benign native bindings. The binary is packed/encrypted (large opaque regions, no source, no binding.gyp, no build manifest) and its strings include LIBBPF_0.0, PTRACE, /proc, USERPROFILE, https://, HTTP/1.1, POST, and DELETE — capabilities (eBPF instrumentation, process tracing, outbound HTTP, cross-platform user-home enumeration) wholly unrelated to the package's advertised purpose (a thin CLI helper). Legitimate prior versions of this package shipped only index.js and a workspace template with no preinstall hook and no native binary; the addition of an opaque packed ELF executed at install time is consistent with a compromised-publish or typosquat-republish supply-chain attack. Installer impact: arbitrary attacker-controlled native code runs with the user's privileges on every npm install, with capabilities to ptrace other processes, instrument the kernel via BPF, enumerate the home directory, and exfiltrate over HTTPS.

Source: google-open-source-security

This package was compromised as part of the IronWorm campaign. This campaign executes a malicious binary payload during installation via a preinstall hook. The payload is a Rust-built infostealer that targets developer environments, scanning for and harvesting credentials related to cloud providers, object storage, databases, source-control, package registries, and AI developer tools. It also targets cryptocurrency wallets, specifically injecting a malicious JavaScript hook into the Exodus desktop wallet to capture passwords and recovery phrases. Furthermore, the malware exhibits worm-like behavior by stealing GitHub and NPM credentials to push malicious updates to the victim's repositories and publish trojanized packages, and it uses an eBPF-based kernel rootkit to hide its processes and network connections on Linux systems.

Affected software

MAL-2026-4726 is recorded against 1 package.

  • weavedb-tools

Timeline and source

Published on 26 May 2026 and last revised on 4 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.npmjs.com (Package)
www.ox.security (Article)
research.jfrog.com (Article)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-05-26
Updated 2026-08-20
Modified 2026-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
weavedb-tools

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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