CVE-2026-55253
- Source
- https://cve.org/CVERecord?id=CVE-2026-55253
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55253.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-55253
- Aliases
- Downstream
- Published
- 2026-09-14T17:09:04Z
- Modified
- 2026-10-28T02:30:37Z
- Severity
-
- 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- LangChain MongoDB: NoSQL Operator Injection in MongoDBSaver.list() leading to cross-tenant data exposure
- Details
-
LangChain MongoDB provides integrations between MongoDB, Atlas, LangChain, and LangGraph. Prior to langgraph-checkpoint-mongodb 0.3.0 and langgraph-store-mongodb 0.4.0, MongoDBSaver.list(), MongoDBSaver.alist(), and MongoDBStore.search() incorporate filter dictionaries into MongoDB queries without recursively rejecting keys prefixed with $. An authenticated caller who controls a filter argument through HTTP query parameters, request body fields, or agent tool arguments can inject MongoDB Query Language operators such as $regex or $where. In a multi-tenant deployment that uses the filter to enforce per-user or per-tenant isolation, injected operators can bypass intended equality filtering and expose other tenants' checkpoint or store data. Filters constructed entirely from trusted server-side values have lower practical risk. This issue is fixed in langgraph-checkpoint-mongodb 0.3.0 and langgraph-store-mongodb 0.4.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-943" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55253.json" }- References
-
- https://github.com/langchain-ai/langchain-mongodb/releases/tag/libs/langgraph-checkpoint-mongodb/v0.4.0
- https://github.com/langchain-ai/langchain-mongodb/releases/tag/libs/langgraph-store-mongodb/v0.3.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55253.json
- https://github.com/langchain-ai/langchain-mongodb/security/advisories/GHSA-533j-2v4q-mw5h
- https://nvd.nist.gov/vuln/detail/CVE-2026-55253
- https://github.com/langchain-ai/langchain-mongodb/commit/14a6cc39e67d23fd409cd13a9caae2c329df0a09
- https://github.com/langchain-ai/langchain-mongodb/commit/240e7ecee432ea006d9fef6ea506bfd2e009a3f4
- https://github.com/langchain-ai/langchain-mongodb/commit/5465e4d3ea0ef5c88a666a6442bd853ff4bd70e5
- https://github.com/langchain-ai/langchain-mongodb/pull/384
Affected packages
Git / github.com/langchain-ai/langchain-mongodb
Affected ranges
- Type
- GIT
- Repo
- https://github.com/langchain-ai/langchain-mongodb
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "0.4.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "0" }, { "fixed": "0.3.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "14a6cc39e67d23fd409cd13a9caae2c329df0a09" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "240e7ecee432ea006d9fef6ea506bfd2e009a3f4" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "5465e4d3ea0ef5c88a666a6442bd853ff4bd70e5" } ], "source": "REFERENCES_COMMIT" } ] }