How severe is CVE-2025-67644?

CVE-2025-67644 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-67644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67644?

CVE-2025-67644 affects Langchain Langgraph-checkpoint-sqlite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-67644 have an EU (EUVD) identifier?

Yes. CVE-2025-67644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202333.

When was CVE-2025-67644 published?

CVE-2025-67644 was published on 2025-12-11 and last updated on 2026-06-17.

CVE-2025-67644

CVE-2025-67644 is a high-severity vulnerability in Langchain Langgraph-checkpoint-sqlite with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202333
Weakness: CWE-89
Affected product: Langchain Langgraph-checkpoint-sqlite
Published: 2025-12-11
Last modified: 2026-06-17

Description

LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). Versions 3.0.0 and below are vulnerable to SQL injection through the checkpoint implementation. Checkpoint allows attackers to manipulate SQL queries through metadata filter keys, affecting applications that accept untrusted metadata filter keys (not just filter values) in checkpoint search operations. The _metadata_predicate() function constructs SQL queries by interpolating filter keys directly into f-strings without validation. This issue is fixed in version 3.0.1.

Frequently asked questions

What is CVE-2025-67644?: LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). Versions 3.0.0 and below are vulnerable to SQL injection through the checkpoint implementation. Checkpoint allows attackers to manipulate SQL queries through metadata filter keys, affecting applications that accept untrusted metadata filter keys (not just filter values) in checkpoint search operations. The _metadata_predicate() function constructs SQL queries by interpolating filter keys directly into f-strings without validation. This issue is fixed in version 3.0.1.
How severe is CVE-2025-67644?: CVE-2025-67644 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-67644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67644?: CVE-2025-67644 affects Langchain Langgraph-checkpoint-sqlite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-67644 have an EU (EUVD) identifier?: Yes. CVE-2025-67644 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202333.
When was CVE-2025-67644 published?: CVE-2025-67644 was published on 2025-12-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:langchain:langgraph-checkpoint-sqlite:*:*:*:*:*:python:*:*

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