registry / tailwindcssss / 1.3.1

tailwindcssss@1.3.1

OSV Malicious Advisory

imported 15d ago · by OpenSSF/OSV

OpenSSF/OSV advisory MAL-2026-11393 confirms this npm version as malicious. 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.

Advisory

MAL-2026-11393

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in tailwindcssss (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.

Decision reason

OpenSSF Malicious Packages via OSV confirms tailwindcssss@1.3.1 as malicious (MAL-2026-11393): Malicious code in tailwindcssss (npm)

References

OSV advisory ADVISORY ADVISORY

Source & flagged code

0 flagged

No flagged code excerpts are attached to this scan.

Findings

1 High

HighOsv Malicious Advisory

Affected versions and remediation

This report applies to tailwindcssss@1.3.1.

The same advisory and Firewall decision cover 20 recorded versions

0.2.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1, 1.10.0, 1.11.0, 1.2.0, 1.3.0, 1.3.1, 1.4.0, 1.4.1, 1.5.0, 1.5.1, 1.6.0, 1.7.0, 1.8.0, 1.8.1, 1.9.0

See version security history for other recorded verdicts.

Avoid installing tailwindcssss@1.3.1. 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: 2026-09-24 09:12:21.465Z (UTC).

Source advisory published: 2026-07-30 22:25:30.000Z (UTC).

This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.