Some mitigations for RCE in PAL chain #7870
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Adds some selective security controls to the PAL chain: 1. Prevent imports 2. Prevent arbitrary execution commands 3. Enforce execution time limit (prevents DOS and long sessions where the flow is hijacked like remote shell) 4. Enforce the existence of the solution expression in the code This is done mostly by static analysis of the code using the ast library. Also added tests to the pal chain. Fixes #5872 @vowelparrot --------- Co-authored-by: HippoTerrific <49598618+HippoTerrific@users.noreply.github.com> Co-authored-by: Or Raz <orraz1994@gmail.com>
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Some docstring / small nits to langchain-ai#6003 --------- Co-authored-by: BoazWasserman <49598618+boazwasserman@users.noreply.github.com> Co-authored-by: HippoTerrific <49598618+HippoTerrific@users.noreply.github.com> Co-authored-by: Or Raz <orraz1994@gmail.com>
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Some docstring / small nits to #6003