babel
Turn ES6 code into readable vanilla ES5 with source maps
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 |
|---|---|---|---|---|
| publish-pattern | new-deps-added | AI (publish-pattern): All 8 new deps are well-known utility packages consistent with Babel transpiler feature growth; no malicious packages among them. | ai | |
| phantom-deps | phantom-dep:useragent | AI (phantom-deps): useragent is declared and used in config; phantom-dep pattern is stable for this package. | ai | |
| phantom-deps | phantom-dep:roadrunner | AI (phantom-deps): roadrunner is declared and used in config; phantom-dep pattern is stable for this package. | ai | |
| dependencies | unvetted-dep:acorn-babel | AI (dependencies): acorn-babel is an intentional Babel-project fork of acorn, used across all babel v4.x releases. Not a supply-chain risk. | ai | |
| dependencies | unvetted-dep:regenerator-babel | AI (dependencies): regenerator-babel is an intentional Babel-project fork of regenerator, used across all babel v4.x releases. Not a supply-chain risk. | ai | |
| phantom-deps | phantom-dep:path-is-absolute | AI (phantom-deps): Minor packaging artifact; path-is-absolute is a legitimate dependency used transitively. Not a security concern. | ai | |
| provenance | no-provenance | AI (provenance): Package predates Sigstore provenance on npm by many years; absence is expected and not a risk signal for this package. | ai | |
| semgrep | semgrep:eval-usage | AI (semgrep): eval() in to-fast-properties.js is a known V8 optimization pattern and is dead code (after a return statement). Not a security concern for this package. | ai | |
| semgrep | semgrep:new-function-constructor | AI (semgrep): Babel's browser API uses new Function() to execute transpiled code — this is the core purpose of the browser-facing transpiler API, stable across versions. | ai | |
| semgrep | semgrep:dynamic-require | AI (semgrep): Dynamic require() is used for plugin/module-formatter loading, a standard pattern in transpilers. Expected and stable for this package. | ai |
Versions (showing 8 of 8)
| Version | Deps | Published |
|---|---|---|
| 4.7.12 | 30 / 11 | |
| 4.7.11 | 30 / 11 | |
| 4.7.3 | 30 / 11 | |
| 4.6.4 | 29 / 11 | |
| 4.5.0 | 29 / 11 | |
| 4.4.5 | 29 / 11 | |
| 4.4.2 | 28 / 11 | |
| 4.0.1 | 23 / 11 |
v4.7.12
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v4.7.11
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v4.7.3
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v4.6.4
1 finding[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.
v4.5.0
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v4.4.5
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v4.4.2
1 finding[Accepted risk] Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.
v4.0.1
1 finding[Accepted risk] Package was published without Sigstore provenance. Only ~12% of npm packages have provenance, so this is common but not ideal.