CVE-2026-28277

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In version 1.0.9 and prior, LangGraph checkpointers can load msgpack-encoded checkpoints that reconstruct Python objects during deserialization. If an attacker can modify checkpoint data in the backing store (for example, after a database compromise or other privileged write access to the persistence layer), they can potentially supply a crafted payload that triggers unsafe object reconstruction when the checkpoint is loaded. No known patch is public.

The following products are affected by CVE-2026-28277 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-28277.

URL	Resource
https://github.com/langchain-ai/langgraph/security/advisories/GHSA-g48c-2wqr-h844