@vscode/vsce-sign — Greenflagged

Visual Studio Code extension package signing and verification module

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures No source commit

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

vscode-botmicrosoft1es

Accepted risks

Findings the reviewer chose to accept rather than block on.

Source	Rule	Reason	Accepted by	When
install-scripts	install-script:postinstall	AI (install-scripts): Postinstall installs platform-specific native binaries from same-org optional deps; documented pattern for this package.	ai	2026/04/29
semgrep	semgrep:env-spread	AI (semgrep): env-spread is used to strip npm_config_global before spawning npm install; not credential exfiltration.	ai	2026/04/29
semgrep	semgrep:child-process-import	AI (semgrep): child_process used to invoke platform binary for signing; core functionality of this native-binding package.	ai	2026/04/29
semgrep	semgrep:dynamic-require	AI (semgrep): Dynamic require reads own package.json to resolve optional dep version; not arbitrary module loading.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-linux-arm	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-linux-x64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-win32-x64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-alpine-x64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-darwin-x64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-linux-arm64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-win32-arm64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-alpine-arm64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29
phantom-deps	phantom-dep:@vscode/vsce-sign-darwin-arm64	AI (phantom-deps): Platform-specific optional dep loaded dynamically at runtime; phantom-dep false positive for this package.	ai	2026/04/29

Versions (showing 2 of 2)

Version	Deps	Published
2.0.9	9 / 1	2025-11-13
2.0.6	9 / 1	2025-06-06

v2.0.9

3 findings

HIGH Package has 'postinstall' script install-scripts

Script: node ./src/postinstall.js

HIGH env-spread: src/postinstall.js:96 semgrep

Spreading entire process.env into an object — may capture all secrets 94 | */ 95 | function installUsingNPM(pkgName, subpath, binPath, version) { > 96 | const env = { ...process.env, npm_config_global: void 0 }; 97 | const vsceSignLibDir = path.dirname(require.resolve('@vscode/vsce-sign')); 98 | const installDir = path.join(vsceSignLibDir, "npm-install");

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.

v2.0.6

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.