CVE-2026-27794 LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

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...

CVE-2026-27794 LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

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...

a2a-client-handler (0.1.0), abs-langchain-suite (>=0.1.5, <=0.3.1) +389 more potentially affected by CVE-2026-27794 via langgraph-checkpoint (>=1.0.2, <=3.0.1)

langgraph-checkpoint PYPI version =1.0.2, =0.1.5, =0.1.0, =0.1.1, =0.1.1, =0.0.1a0, =2.1.7, =0.0.2, =0.1.1, =0.2.0a1, =0.2.5a2, =0.0.3rc0, =0.0.3rc4 - agentfence 0.1.0 and more Source cves: CVE-2026-27794 Source advisory: MEND:CVE-2026-27794...

CVE-2026-27794 LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution

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...

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...

CVE-2026-27794

LangGraph CVE-2026-27794 affects the Checkpoint component prior to version 4.0.0 where the BaseCache default serializer (JsonPlusSerializer with pickle_fallback) can deserialize attacker-supplied bytes from a cache backend if the application enables caching and nodes opt into CachePolicy. An atta...

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....

langgraph code issue vulnerability

Langgraph is a large-scale model framework developed by LangChain. Versions of Langgraph prior to 4.0.0 had code-related vulnerabilities. These vulnerabilities stemmed from the caching layer’s ability to deserialize cached values using pickle.loads when msgpack serialization fails, potentially...

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...

@flutchai/flutch-sdk (>=0.2.7, <=0.2.8), @sonic-agent-kit/agent-setup-lib (>=1.0.5, <=1.0.6) +1 more potentially affected by CVE-2026-27022 via @langchain/langgraph-checkpoint-mongodb (>=0.0.2, <=1.0.0)

@langchain/langgraph-checkpoint-mongodb NPM version =0.0.2, =0.2.7, =1.0.5, =1.0.0, =1.0.27 Source cves: CVE-2026-27022 Source advisory: MEND:CVE-2026-27022...

@langgraph-js/pure-graph (>=1.3.0, <=1.5.3), @langgraph-js/sdk (>=3.0.0, <=3.1.0) +1 more potentially affected by CVE-2026-27022 via @langchain/langgraph-checkpoint-redis (0.0.2)

@langchain/langgraph-checkpoint-redis NPM version 0.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on @langchain/langgraph-checkpoint-redis and may be impacted: - @langgraph-js/pure-graph =1.3.0, =3.0.0, =3.0.0, =3.0.1 Source cves: CVE-2026-27022...

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, <=0.2.8) 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, =0.2.8 Source cves: CVE-2026-27022 Source advisory:...

cuga (0.1.0), minitap-mobile-use (>=0.0.1.dev0, <=2.1.0) +3 more potentially affected by CVE-2026-26013 via langchain-core (0.3.66)

langchain-core PYPI version 0.3.66 is affected by a known vulnerability. The following packages have a transitive dependency on langchain-core and may be impacted: - cuga 0.1.0 - minitap-mobile-use =0.0.1.dev0, =0.2.0, =0.1.0, =0.0.11, =0.0.61 Source cves: CVE-2026-26013 Source advisory:...

SQL Injection

LangGraph SQLite Checkpoint is vulnerable to SQL injection. The vulnerability is due to unsafe construction of SQL queries using unvalidated metadata filter keys, where attacker-controlled keys are interpolated directly into SQL f-strings in the checkpoint search logic, allowing manipulation of...

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...

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...

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...