← Home

@bufbuild/cel

A CEL evaluator for ECMAScript

7
Versions
Apache-2.0
License
No
Install Scripts
Verified
Provenance

Supply chain provenance

Status for the latest visible version.

SLSA provenance attestation npm registry signatures gitHead linked

Maintainers

bufdevtstamm-bufbufbotjdailey_bufdoriakeung

Keywords

javascripttypescriptprotobufcelcommon-expression-language

Accepted risks

Findings the reviewer chose to accept rather than block on.

SourceRuleReasonAccepted byWhen
npm-metadata url-dep:peggy-ts AI (npm-metadata): Dev-only dependency used for parser generation; does not affect runtime consumers. ai
source-diff net-exec-file:dist/cjs/eval.js AI (source-diff): Compiled CEL evaluator code with Apache-2.0 header; no actual network calls or malicious exec. ai
source-diff net-exec-file:dist/esm/eval.js AI (source-diff): ESM variant of same clean CEL evaluator code; false positive. ai
source-diff net-exec-file:dist/esm/plan.js AI (source-diff): ESM variant of same clean CEL planner code; false positive. ai
source-diff net-exec-file:dist/cjs/plan.js AI (source-diff): Compiled CEL planner code; imports are all @bufbuild/* packages, no malicious behavior. ai
provenance publisher-changed AI (provenance): Both publishers are buf.build org accounts; internal maintainer rotation within the same org. ai
provenance no-provenance AI (provenance): Bufbuild org package; lack of Sigstore attestation is common and not a risk signal here. ai

Versions (showing 7 of 7)

Version Deps Published
0.6.0 2 / 4
0.5.0 1 / 3
0.4.0 1 / 3
0.3.0 1 / 3
0.2.0 1 / 2
0.1.0 1 / 2
0.0.1 1 / 2

v0.6.0

1 finding
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

v0.5.0

2 findings
INFO Has SLSA provenance attestation provenance

Published via CI/CD with Sigstore attestation (predicate: https://slsa.dev/provenance/v1). This is the strongest supply chain integrity signal.

INFO Publisher changed: srikrsna-buf → GitHub Actions (on 2026-05-06) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2026-05-06. This could indicate a legitimate maintainer transition or an account compromise.

v0.3.0

6 findings
HIGH Publisher changed: tstamm-buf → srikrsna-buf (on 2025-07-28) provenance

This version was published by a different npm account than previous versions on 2025-07-28. This could indicate a legitimate maintainer transition or an account compromise.

HIGH New file with network + code execution: dist/cjs/eval.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

HIGH New file with network + code execution: dist/esm/eval.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

HIGH New file with network + code execution: dist/cjs/plan.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

HIGH New file with network + code execution: dist/esm/plan.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

INFO No provenance attestation provenance

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

v0.2.0

2 findings
HIGH Publisher changed: tstamm-buf → srikrsna-buf (on 2025-06-04) provenance

This version was published by a different npm account than previous versions on 2025-06-04. This could indicate a legitimate maintainer transition or an account compromise.

INFO No provenance attestation provenance

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

v0.1.0

1 finding
INFO No provenance attestation provenance

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

v0.0.1

1 finding
INFO No provenance attestation provenance

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