registry / Malware / prettier-plugin-base

prettier-plugin-base

This report shows the evidence for prettier-plugin-base@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/OSV

OpenSSF/OSV advisory MAL-2026-10430 confirms this npm version as malicious.

Advisory

MAL-2026-10430

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in prettier-plugin-base (npm)

Details

The package was found to contain malicious code or consuming dependency that contains malicious code ## Source: ghsa-malware (12e1efa0356d63d986dfc7b5ffb552aedb5341ba76043370f5e4d1a5dff6804e) 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

OpenSSF/OSV advisory ADVISORY PACKAGE

Independent LPM AI assessment

Clean

Independent AI assessment: clean. LPM AI assessed this version as clean; the assessments disagree.

Direct source inspection shows a minimal lyric utility with no install-time or runtime attack behavior. The unrelated dependency declaration is not executed or referenced by this package's source.

Static reason

No blocking static signals were detected.

Trigger

User explicitly imports `prettier-plugin-base` and calls a `line*` function.

Impact

No observed credential access, network activity, persistence, execution, or file mutation.

Mechanism

Static local string-returning exports only.

AI rationale

Direct source inspection shows a minimal lyric utility with no install-time or runtime attack behavior. The unrelated dependency declaration is not executed or referenced by this package's source.

Evidence

package.jsonindex.jsREADME.md

Independent scan evidence

public snapshot

AI 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 preinstall/install/postinstall/prepare lifecycle hook.
`index.js` only exports five synchronous functions returning fixed strings.
`README.md` documents the same local lyric-returning API.
No network, filesystem-write, environment, shell, eval, or dynamic-loading primitive appears in package source.

Behavioral surface

SourceNo risky source behavior triggered.

Supply chain

Trivial

ManifestNo manifest risk signals triggered.

scanned 1 file(s), 248 B of source

Source & flagged code

0 flagged

No flagged code excerpts are attached to this scan.

Source & flagged code

0 flagged · loading source

No flagged code excerpts are attached to this scan.

Findings

1 Low

LowScripts Present

Affected versions and remediation

This report applies to prettier-plugin-base@1.0.0.

The versions list below shows the verdict for each recorded version.

Avoid installing prettier-plugin-base@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: 2026-07-14 07:45:08.269Z (UTC).

Source advisory published: 2026-07-13 08:17:11.000Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

2 known versions

0.0.1-securitylatestClean—AllowPublishedJul 13, 2026, 8:16 AM 1.0.0shownMaliciousMalwareBlockPublishedJul 11, 2026, 11:56 AM

OpenSSF/OSV Malicious Advisory

Independent LPM AI assessment

Independent scan evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other malware packages

Source & flagged code

Related packages

Other malware packages