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Arun Kumar Thiagarajan
4425d4453b
The gstack-slug script is consumed via eval $(gstack-slug) throughout skill templates. If a git remote URL contains shell metacharacters like $(), backticks, or semicolons, they would be executed by eval. Fix: strip all characters except [a-zA-Z0-9._-] from both SLUG and BRANCH before output. This preserves normal values while neutralizing any injection payload in malicious remote URLs. Before: eval $(gstack-slug) with remote "foo/bar$(rm -rf /)" → executes rm After: eval $(gstack-slug) with remote "foo/bar$(rm -rf /)" → SLUG=foo-barrm-rf-