Collected research
All I Want for Christmas is Your Secrets: LangGrinch hits LangChain Core (CVE-2025-68664)
Explains how LangChain serialization failed to escape user dictionaries containing its reserved `lc` marker. Prompt-controlled response fields can survive a trusted serialization round trip and be deserialized as framework objects, exposing environment secrets or instantiating classes with side effects.
Record
- Researcher
- Yarden Porat
- Published by
- Cyata Research
- Date
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This page is the archive's own catalogue record. The research is the work of Yarden Porat, first published at the original source. Preserved copies are kept so the citation survives its host.