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Vulnerabilities

Vulnerability · CVE-2025-64439

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite).

Published Nov 7, 2025 · catalog updated Nov 7, 2025 · LangGraph SQLite Checkpoint is

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-64439. EPSS is 0.89%. Act only if a listed version of LangGraph SQLite Checkpoint is is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (LangGraph SQLite Checkpoint is).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.89%
Remediation
Version ranges on file
Affected products
vendor langchain-ai langgraph < 3.0.0

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 2.1.2 and below, the JsonPlusSerializer (used as the default serialization protocol for all checkpointing) contains a Remote Code Execution (RCE) vulnerability when deserializing payloads saved in the "json" serialization mode. By default, the serializer attempts to use "msgpack" for serialization. However, prior to version 3.0 of the checkpointer library, if illegal Unicode surrogate values caused serialization to fail, it would fall back to using

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor langchain-ai langgraph < 3.0.0< 3.0.0

How to fix CVE-2025-64439

  • Upgrade

    CVE-2025-64439 lists a fix boundary at 3.0.0. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 3.0.0

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-64439. EPSS is 0.89%. Act only if a listed version of LangGraph SQLite Checkpoint is is installed.

Which versions are affected?

Compare what you have installed with langchain-ai langgraph < 3.0.0 < 3.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.89%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 7, 2025 · EUVD

    Detected

    LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 2.1.2 and below, the JsonPlusSerializer (used as the default serialization protocol for all checkpointing) contains a Remote Code Execution (RCE) vulnerability when deserializing payloads saved in the "json" serialization mode. By default, the serializ

  2. Nov 7, 2025 · EUVD

    Updated

    LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 2.1.2 and below, the JsonPlusSerializer (used as the default serialization protocol for all checkpointing) contains a Remote Code Execution (RCE) vulnerability when deserializing payloads saved in the "json" serialization mode. By default, the serializ

Sources

  • CVE.orgVulnerability recordCVE-2025-64439

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-37934

    LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 2.1.2 and below, the JsonPlusSerializer (used as the default serialization protocol for all checkpointing) contains a Remote Code Ex

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 25, 2026
  • EUVDOct 25, 2026