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Session installation accepts traversal IDs and loses filenames from other operating systems - #14

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dipeshbabu wants to merge 1 commit into
fix/ci-bundle-smokefrom
fix/safe-install-paths
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dipeshbabu wants to merge 1 commit into
fix/ci-bundle-smokefrom
fix/safe-install-paths

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@dipeshbabu

@dipeshbabu dipeshbabu commented Oct 5, 2026 •

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Upstream replacement: subconscious-systems#4

This PR was created in the fork in error. The fix and its issue are now submitted to upstream.

A session ID such as ../escape is joined directly into harness storage paths, allowing a received trace to write outside the intended directory. metadata.sourcePath also uses the receiver's native basename rules, so Windows filenames are misread on Unix.

Reject unsafe or reserved filename IDs before resolving install paths. Extract original basenames with both path conventions and fall back for nonportable names. Tests cover all harnesses, traversal, control characters, Windows reserved names, and both source path conventions.

Validation: frozen-lockfile dependencies, typecheck, full tests, npm bundle build, and bundled CLI version/help smoke tests. The Ubuntu/Windows Node 20/22 branch CI must pass before this PR is created.

This PR is based on the CI foundation branch so its diff contains only this bug fix; merge the CI foundation PR first.

Closes #3.

All branch CI checks passed on e285f22: https://github.com/dipeshbabu/vibi-cli/actions/runs/37262968577

@dipeshbabu dipeshbabu closed this Oct 5, 2026
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