ckcc-protocol
This report shows the evidence for ckcc-protocol@1.0.3. 4 of 4 known versions are blocked or flagged. See all versions.
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-12064 confirms this npm version as malicious.
Advisory
MAL-2026-12064
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in ckcc-protocol (npm)
Details
The npm package ckcc-protocol@1.0.2 typosquats the legitimate Coldcard ckcc-protocol tool and ships no functionality (index.js exports {}). Its package.json declares a postinstall script that runs automatically on npm install. The postinstall reads a fixed set of installer-side secret files, including ~/.env*, ~/.npmrc, ~/.aws/credentials, ~/.ssh/id_rsa, ~/.ssh/id_ed25519, ~/.ssh/id_ecdsa, ~/.config/solana/id.json, and ~/.ethereum/keystore, plus any dotfile whose name matches /wallet|key|secret|seed|mnemonic|keystore|private/i. It bundles the collected file contents together with os.hostname() and os.userInfo().username into a JSON payload and POSTs it via https.request to webhook.site/5c5ad6cb-62df-4ea5-9dfb-2c447920ddc4. The destination is an attacker-controlled request-capture endpoint, not the legitimate Coldcard project.
## Source: ossf-package-analysis (61a440517bf97875e91920faabc309da8fa1bfe264e510fa54e5ffa210bd1d15) The OpenSSF Package Analysis project identified 'ckcc-protocol' @ 1.0.0 (npm) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to ckcc-protocol@1.0.3.
The same advisory and Firewall decision cover 4 recorded versions
1.0.0, 1.0.1, 1.0.2, 1.0.3
The versions list below shows the verdict for each recorded version.
- Avoid installing ckcc-protocol@1.0.3. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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