@iobandamwer/cache-helper@1.1.3
OpenSSF/OSV Malicious Advisory
imported 9d ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-18329 confirms this npm version as malicious.
Advisory
MAL-2026-18329
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in @iobandamwer/cache-helper (npm)
Details
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
SuspiciousIndependent AI assessment: suspicious. LPM AI assessed this version as suspicious; the assessments disagree.
The native add-ons run during installation and import, and available analysis does not resolve their behavior. The process-creation import and unsupported Linux artifact justify a warning, but do not prove malicious behavior.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Package installation or importing the main entrypoint.
Impact
The effect of native initialization remains unresolved; the evidence does not establish malicious activity.
Mechanism
Both paths select a platform-specific native add-on and call its init function; the Linux artifact could not be analyzed, and the Windows analysis lists a process-creation import without resolving its use.
AI rationale
The native add-ons run during installation and import, and available analysis does not resolve their behavior. The process-creation import and unsupported Linux artifact justify a warning, but do not prove malicious behavior.
Evidence
package.jsonindex.js.lpm-inspection-wBfS7A/0-a7d729eb5d1d.txt.lpm-inspection-wBfS7A/1-934872265002.txt
Independent scan evidence
public snapshotAI called this Suspicious at 79.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for AI warning decision
- The postinstall hook loads a platform-specific native add-on and calls its init function.
- The main entrypoint also loads the platform-specific add-on and calls init when imported.
- The Linux add-on is an executable artifact whose behavior the offline analysis could not resolve.
- The Windows add-on analysis identifies a process-creation import, but does not establish how it is used.
Evidence against
- The inspected sources establish no specific malicious action, recipient, or payload execution.
Behavioral surface
DynamicRequire
Trivial
Source & flagged code
8 flaggedpackage.jsonView file
•scripts.postinstall = node -e "try{require(process.platform==='win32'?'./addon_win.node':'./addon.node').init()}catch(e){}"
Critical
Red Install Lifecycle Script
Install-time lifecycle script matches a deterministic static-gate block pattern.
package.jsonView on unpkg•scripts.postinstall = node -e "try{require(process.platform==='win32'?'./addon_win.node':'./addon.node').init()}catch(e){}"
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg7"postinstall": "node -e \"try{require(process.platform==='win32'?'./addon_win.node':'./addon.node').init()}catch(e){}\""
},
"keywords": [
"cache",
"utils"
],
"licen
High
Suspicious Lifecycle Evidence
The postinstall hook loads a platform-specific native add-on and calls its init function.
package.jsonView on unpkg · L7Findings
1 Critical5 High3 Medium1 Low
CriticalRed Install Lifecycle Scriptpackage.json
HighInstall Time Lifecycle Scriptspackage.json
HighSuspicious Lifecycle Evidencepackage.json
HighAi Review Evidenceindex.js
HighAi Review Evidence.lpm-inspection-wBfS7A/0-a7d729eb5d1d.txt
HighAi Review Evidence.lpm-inspection-wBfS7A/1-934872265002.txt
MediumDynamic Requireindex.js
MediumShips Native Binaryaddon.node
MediumStructural Risk Force Deep Review
LowScripts Present
Affected versions and remediation
This report applies to @iobandamwer/cache-helper@1.1.3.
See all versions of @iobandamwer/cache-helper for other recorded verdicts.
- Avoid installing @iobandamwer/cache-helper@1.1.3. 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: .
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