CVE-2026-115883
LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores
Published Oct 23, 2026
CVSS 4.0 · 6 Medium
EPSS < 1%
KEV · Not listed
Description
LangGraph checkpoint savers provide Postgres- and SQLite-backed state persistence for LangGraph workflows and agents. Prior to langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2, PostgresStore, AsyncPostgresStore, SqliteStore, and AsyncSqliteStore flatten namespace labels with ".".join(namespace), while BaseStore validates labels only for put and aput. Unvalidated dotted labels passed through get, search, delete, list_namespaces, their asynchronous equivalents, or direct batch and abatch operations can resolve to another tenant's stored namespace, allowing cross-namespace reads, overwrites, or deletion. InMemoryStore is not affected because it compares namespace tuples. This issue is fixed in langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2.
Affected Products
-
CVE record
-
NVD configurations
No data
-
Red Hat packages
No data
-
OpenCVE enrichment
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| langchain-ai | langgraph | affected |
|
||||||
| langchain-ai | langgraph-checkpoint-postgres | affected |
|
||||||
| langchain-ai | langgraph-checkpoint-sqlite | affected |
|
No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Langchain-ai | Langgraph |
|
||||||||
| Langchain-ai | Langgraph-checkpoint-postgres |
|
||||||||
| Langchain-ai | Langgraph-checkpoint-sqlite |
|
Remediation
Tracking
Advisories
| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-6hmw-9432-67qq | LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores |
Metrics
Attack Vector Network
Attack Complexity Low
Privileges Required Low
Attack Requirements Present
User Interaction None
Vulnerable System Confidentiality Impact High
Vulnerable System Integrity Impact Low
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.298% probability within 30 days)
Exploitation none
Automatable no
Technical Impact partial
References
History
Oct 26, 2026 7:15 PM
First appearance in the feed. Affected vendors updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Langchain-ai
Langchain-ai langgraph Langchain-ai langgraph-checkpoint-postgres Langchain-ai langgraph-checkpoint-sqlite |
|
| Vendors & Products |
Langchain-ai
Langchain-ai langgraph Langchain-ai langgraph-checkpoint-postgres Langchain-ai langgraph-checkpoint-sqlite |
Oct 26, 2026 6:30 PM
Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Oct 23, 2026 9:30 PM
Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | LangGraph checkpoint savers provide Postgres- and SQLite-backed state persistence for LangGraph workflows and agents. Prior to langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2, PostgresStore, AsyncPostgresStore, SqliteStore, and AsyncSqliteStore flatten namespace labels with ".".join(namespace), while BaseStore validates labels only for put and aput. Unvalidated dotted labels passed through get, search, delete, list_namespaces, their asynchronous equivalents, or direct batch and abatch operations can resolve to another tenant's stored namespace, allowing cross-namespace reads, overwrites, or deletion. InMemoryStore is not affected because it compares namespace tuples. This issue is fixed in langgraph-checkpoint-postgres 3.1.3 and langgraph-checkpoint-sqlite 3.1.2. | |
| Title | LangGraph: Namespace labels containing `.` reach other namespaces in Postgres and SQLite stores | |
| Weaknesses | CWE-20 CWE-863 |
|
| References |
| |
| Metrics |
cvssV4_0
|
