CVE-2026-28277
HIGH EPSS 91.5%
Published Mar 5, 20263mo ago · Modified Jun 17, 20262w ago
7.2 CVSS 3.1
Published Mar 5, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
91.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-502 Deserialization of Untrusted Data Validation
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| langchain | langgraph | * | ≤1.0.9 |
References 1
- github.com https://github.com/langchain-ai/langgraph/security/advisories/GHSA-g48c-2wqr-h844
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.