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lz-string

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LZ-based compression algorithm

9
Versions
MIT
License
No
Install Scripts
Missing
Provenance

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures gitHead linked

Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.

Maintainers

pieroxy

Keywords

lzcompressionstring

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
source-diff encoded-string-file:tests/lz-string-spec.js AI (source-diff): Long encoded strings in test files are expected test fixtures for a compression library; stable false positive for lz-string. ai

Versions (showing 9 of 9)

Version Deps Published
1.5.0 0 / 0
1.4.4 0 / 0
1.4.3 0 / 0
1.4.2 0 / 0
1.4.1 0 / 0
1.4.0 0 / 0
1.3.6 0 / 0
1.3.5 0 / 0
1.3.3 0 / 0

v1.5.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.4.4

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.4.3

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.4.2

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.4.1

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.4.0

2 findings
HIGH Long encoded string in modified file: tests/lz-string-spec.js source-diff

Modified file contains 3 long encoded string(s) (200+ chars). These are commonly used to hide malicious payloads.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.3.6

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.3.5

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v1.3.3

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.