fix: reserve Hermit execution environment variables - #611
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Manifest-controlled ACTIVE_HERMIT and XDG_CACHE_HOME can redirect Hermit to attacker-selected binaries, bypassing script verification. Reject both variables from manifests and cover the behavior in unit and shell integration tests. Co-authored-by: Codex <noreply@openai.com>
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Manifest-controlled ACTIVE_HERMIT and XDG_CACHE_HOME can redirect Hermit to attacker-selected binaries, bypassing script verification. Reject both variables from manifests and cover the behavior in unit and shell integration tests.
Co-authored-by: Codex noreply@openai.com