@emotion/is-prop-valid
A function to check whether a prop is valid for HTML and SVG elements
Supply chain provenance
Status for the latest visible version.
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
Accepted risks
Findings the reviewer chose to accept rather than block on.
| Source | Rule | Reason | Accepted by | When |
|---|---|---|---|---|
| source-diff | obfuscated-file:dist/is-prop-valid.cjs.dev.js | AI (source-diff): Long lines are a large HTML/SVG/React prop-name regex, not obfuscation. This is the expected build artifact for @emotion/is-prop-valid and will recur in every version. | ai | |
| source-diff | obfuscated-file:dist/is-prop-valid.cjs.prod.js | AI (source-diff): Long lines are a large HTML/SVG/React prop-name regex in minified form, not obfuscation. Expected build artifact for this package. | ai | |
| provenance | publisher-changed | AI (provenance): Publisher change from mitchellhamilton to emotion-release-bot is a documented, legitimate transition to an automated release bot for the emotion-js project. Bot has 570 approved / 0 rejected packages. | ai | |
| provenance | no-provenance | AI (provenance): Package predates Sigstore provenance; no provenance attestation is expected for this era of publishing and does not indicate risk for this well-established package. | ai | |
| provenance | missing-githead | AI (provenance): Established Emotion ecosystem package with strong publisher track record; missing gitHead reflects a publish environment change, not a security concern for this package. | ai | |
| source-diff | obfuscated-file:dist/emotion-is-prop-valid.cjs.prod.js | AI (source-diff): Same pattern as dev bundle: minified CJS output with a large prop-name regex. Standard build artifact, no malicious content. | ai | |
| source-diff | obfuscated-file:dist/emotion-is-prop-valid.cjs.dev.js | AI (source-diff): Long lines are a single large regex of valid HTML/SVG/React prop names in a standard Rollup CJS bundle — not obfuscation. Expected build artifact for this package. | ai | |
| maintainer-change | maintainer-added | AI (maintainer-change): andarist (Mateusz Burzyński) is a well-known, legitimate Emotion.js core maintainer. Addition is consistent with the project's known contributor history. | ai |
Versions (showing 33 of 33)
| Version | Deps | Published |
|---|---|---|
| 1.4.0 | 1 / 2 | |
| 1.3.1 | 1 / 2 | |
| 1.3.0 | 1 / 2 | |
| 1.2.2 | 1 / 2 | |
| 1.2.1 | 1 / 2 | |
| 1.2.0 | 1 / 2 | |
| 1.1.3 | 1 / 2 | |
| 1.1.2 | 1 / 1 | |
| 1.1.1 | 1 / 1 | |
| 1.1.0 | 1 / 1 | |
| 1.0.0 | 1 / 1 | |
| 0.8.8 | 1 / 1 | |
| 0.8.7 | 1 / 1 | |
| 0.8.6 | 1 / 1 | |
| 0.8.5 | 1 / 1 | |
| 0.8.4 | 1 / 1 | |
| 0.8.3 | 1 / 1 | |
| 0.8.2 | 1 / 1 | |
| 0.8.1 | 1 / 1 | |
| 0.7.3 | 1 / 1 | |
| 0.7.2 | 1 / 1 | |
| 0.7.1 | 1 / 1 | |
| 0.7.0 | 1 / 1 | |
| 0.6.8 | 1 / 0 | |
| 0.6.7 | 1 / 0 | |
| 0.6.6 | 1 / 0 | |
| 0.6.5 | 1 / 0 | |
| 0.6.4 | 1 / 0 | |
| 0.6.3 | 1 / 0 | |
| 0.6.2 | 1 / 0 | |
| 0.6.1 | 1 / 0 | |
| 0.6.0 | 1 / 0 | |
| 0.5.2 | 0 / 0 |
v1.4.0
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.3.1
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.3.0
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.2.2
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.2.1
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.2.0
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.1.3
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.1.2
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.1.1
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.1.0
1 findingPackage was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v1.0.0
3 findingsNewly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.
Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.
Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.8.8
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.8.7
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.8.6
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.8.5
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.8.4
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.8.3
3 findingsThis version was published by a different npm account than previous versions on 2019-09-17. This could indicate a legitimate maintainer transition or an account compromise.
[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
[Accepted risk] This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: emotion-release-bot.
v0.8.2
2 findings[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
[Accepted risk] This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: mitchellhamilton.
v0.8.1
2 findings[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
[Accepted risk] This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: mitchellhamilton.
v0.7.3
2 findings[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
[Accepted risk] This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: mitchellhamilton.
v0.7.2
2 findings[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
[Accepted risk] This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: mitchellhamilton.
v0.7.1
2 findingsThis version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: mitchellhamilton.
Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.7.0
4 findingsNewly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.
Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.
[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
[Accepted risk] This version has no gitHead field linking it to a source commit, but previous versions did. This suggests the publish environment changed. Published by: mitchellhamilton.
v0.6.8
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.7
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.6
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.5
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.4
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.3
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.2
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.1
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.6.0
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v0.5.2
1 finding[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.