PT-2026-74856

TuxCare rebuilt langgraph-checkpoint to address 1 CVE. Fixed in 2.1.2.post1+tuxcare...

PT-2026-85922

Package py3-langgraph-checkpoint version 4.1.1-r0 fixes 1 vulnerabilities: ghsa-f4xh-w4cj-qxq8...

CLEANSTART-2026-VB75499 Security fixes for ghsa-f4xh-w4cj-qxq8 applied in versions: 4.1.1-r0

Security vulnerability affects the py3-langgraph-checkpoint package. This issue is resolved in later releases. See references for vulnerability details...

PT-2026-66790

Security vulnerability affects the py3-langgraph-checkpoint package. This issue is resolved in later releases. See references for vulnerability details...

LangGraph Checkpoint: Unsafe JSON deserialization in checkpoint loading

SummaryLangGraph's JsonPlusSerializer can reconstruct Python objects from JSON checkpoint payloads. Under conditions where someone could modify checkpoint bytes at rest in the backing store, the deserialization path could reconstruct objects beyond what the application expects, which could in tur...

LangGraph Checkpoint affected by RCE in "json" mode of JsonPlusSerializer

SummaryPrior to langgraph-checkpoint version 3.0 , LangGraph’s 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.If an attacker can cause your...

PYSEC-2026-1527 LangGraph Checkpoint affected by RCE in "json" mode of JsonPlusSerializer

Summary Prior to langgraph-checkpoint version 3.0 , LangGraph’s 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. If an attacker can cause your...

@flutchai/flutch-sdk (>=0.2.7, <=0.5.0) potentially affected by CVE-2026-48121 via @langchain/langgraph-checkpoint-mongodb (1.0.0)

@langchain/langgraph-checkpoint-mongodb NPM version 1.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on @langchain/langgraph-checkpoint-mongodb and may be impacted: - @flutchai/flutch-sdk =0.2.7, =0.5.0 Source cves: CVE-2026-48121 Source advisory:...

Deserialization of Untrusted Data

Overview langgraph-checkpoint is a library with base interfaces for LangGraph checkpoint savers. Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the msgpack-encoded checkpoints. An attacker can execute arbitrary code by supplying a crafted msgpack-encoded...

CVE-2026-27794

A flaw was found in LangGraph Checkpoint. This vulnerability allows a remote attacker with write access to the cache backend to achieve remote code execution. This occurs when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. If msgpack...

CVE-2026-27794

LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. Prior to...

PT-2026-21967

Name of the Vulnerable Software and Affected Versions LangGraph versions prior to 4.0.0 Description A Remote Code Execution issue exists in LangGraph's caching layer when applications enable cache backends inheriting from BaseCache and opt nodes into caching via CachePolicy. Prior to version 4.0....

CVE-2026-27794: Deserialization of Untrusted Data

LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from BaseCache and opt nodes into caching via CachePolicy. Prior to...

Exploit for CVE-2025-67644

CVE-2025-67644 PoC – LangGraph SQLite Checkpoint SQL Injection...

CVE-2026-27022 RediSearch Query Injection in @langchain/langgraph-checkpoint-redis

@langchain/langgraph-checkpoint-redis is the Redis checkpoint and store implementation for LangGraph. A query injection vulnerability exists in the @langchain/langgraph-checkpoint-redis package's filter handling. The RedisSaver and ShallowRedisSaver classes construct RediSearch queries by directl...

CVE-2026-27022: Improper Neutralization of Special Elements in Output Used by a Downstream Component

@langchain/langgraph-checkpoint-redis is the Redis checkpoint and store implementation for LangGraph. A query injection vulnerability exists in the @langchain/langgraph-checkpoint-redis package's filter handling. The RedisSaver and ShallowRedisSaver classes construct RediSearch queries by directl...

@flutchai/flutch-sdk (>=0.2.7, <=0.5.0) potentially affected by CVE-2026-27022 via @langchain/langgraph-checkpoint-mongodb (1.0.0)

@langchain/langgraph-checkpoint-mongodb NPM version 1.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on @langchain/langgraph-checkpoint-mongodb and may be impacted: - @flutchai/flutch-sdk =0.2.7, =0.5.0 Source cves: CVE-2026-27022 Source advisory:...

SQL Injection

langgraph-checkpoint-sqlite is vulnerable to SQL Injection. The vulnerability is due to use of direct string concatenation without proper parameterization in database queries, which allows an attacker to inject arbitrary SQL and bypass access controls...

SQL Injection

Overview langgraph-checkpoint-sqlite is a Library with a SQLite implementation of LangGraph checkpoint saver. Affected versions of this package are vulnerable to SQL Injection via the metadatapredicate function. An attacker can execute arbitrary SQL commands by supplying crafted metadata filter...

The vulnerability relates to the implementation of the serialization protocol of the LangGraph Checkpoint pattern in the SQLite database management system. This allows a attacker to execute arbitrary code.

The vulnerability of the JsonPlusSerializer serialization protocol of the LangGraph Checkpoint state-saving pattern of the SQLite database management system is related to deficiencies in the deserialization mechanism. Exploiting this vulnerability could allow an attacker to execute arbitrary code...