caldryn
This report shows the evidence for caldryn@1.0.0. 1 of 2 known versions is blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-11008 confirms this npm version as malicious.
Advisory
MAL-2026-11008
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in caldryn (npm)
Details
No a static rule matches and no traced behavioral findings were produced for this package version. There is no observed evidence of install-time or import-time code execution beyond ordinary package loading, no exfiltration primitives, no hardcoded external network destinations, no credential or filesystem reconnaissance, and no lifecycle scripts fetching or executing remote content.
## Source: ghsa-malware (5c9fe8dc148d9aeea38bde81a4c2c467769c550580a8394dbbef1152aea36ca6) 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
Independent LPM AI assessment
CleanIndependent AI assessment: clean. LPM AI assessed this version as clean; the assessments disagree.
Source inspection shows a pure calendar utility plus an explicitly imported local temporary-file cache. No concrete malicious behavior or install-time execution exists.
Static reason
No blocking static signals were detected.
Trigger
Consumer imports caldryn/store and calls store methods.
Impact
Limited, package-aligned local temporary-file writes; no confirmed exfiltration or destructive behavior.
Mechanism
Local JSON memoization in <os-tmp>/caldryn-store.
AI rationale
Source inspection shows a pure calendar utility plus an explicitly imported local temporary-file cache. No concrete malicious behavior or install-time execution exists.
Evidence
package.jsonindex.mjsstore.mjsREADME.mdindex.d.tsstore.d.ts
Independent scan evidence
public snapshotAI called this Clean at 99.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
Evidence against
- package.json has no lifecycle scripts or dependencies.
- index.mjs only performs date and aggregation calculations.
- store.mjs uses node:fs only for an opt-in JSON cache under the OS temp directory.
- No network, subprocess, dynamic code execution, credential access, or persistence was found.
Behavioral surface
Filesystem
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 Low
LowFilesystem
Affected versions and remediation
This report applies to caldryn@1.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing caldryn@1.0.0. 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: .
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