# LangChain AI vulnerabilities Source: https://junglewise.ai/threats/vendors/langchain-ai Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/langchain-ai.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 9 vulnerabilities in LangChain AI: 0 in the last 7 days and 2 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-115883, was published on 23 October 2026. 1 vulnerability in the last four weeks, level on the four before (1). ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 2 - All time: 9 (1 critical, 0 exploited in the wild) ## About LangChain AI Company that develops LangChain, a framework for building applications with large language models. ## Latest LangChain AI vulnerabilities - [CVE-2026-115883: LangGraph checkpoint savers namespace validation bypass in SQLite and Postgres](https://junglewise.ai/threats/cve-2026-115883-langgraph-checkpoint-savers-provide-postgres-and-sqlite-backed) (medium, CVSS 4, published 23 Oct 2026) - [CVE-2026-106119: LangChain MongoDBChatMessageHistory query operator injection](https://junglewise.ai/threats/cve-2026-106119-langchain-is-a-framework-for-building-llm-powered-applications) (medium, CVSS 4, published 6 Oct 2026) - [CVE-2026-71433: LangGraph incorrect authorization in Postgres and SQLite namespace matching](https://junglewise.ai/threats/cve-2026-71433-langgraph-incorrect-authorization-in-postgres-and-sqlite) (medium, CVSS 5.3, published 6 Aug 2026) - [CVE-2026-14742: LangChain LangGraph weak hash in Task Result Cache](https://junglewise.ai/threats/cve-2026-14742-langchain-langgraph-weak-hash-in-task-result-cache) (low, CVSS 3.1, published 5 Jul 2026) - [CVE-2026-55443: LangChain path traversal and sandbox escape in file-search middleware and loaders](https://junglewise.ai/threats/cve-2026-55443-langchain-path-traversal-and-sandbox-escape-in-file-search) (medium, CVSS 5.1, published 22 Jun 2026) - [CVE-2026-48775: LangChain LangGraph unsafe deserialization in JsonPlusSerializer](https://junglewise.ai/threats/cve-2026-48775-langchain-langgraph-unsafe-deserialization-in-jsonplusserializer) (medium, CVSS 6.8, published 16 Jun 2026) - [CVE-2026-45134: LangChain LangSmith SDK untrusted deserialization in prompt pull methods](https://junglewise.ai/threats/cve-2026-45134-langchain-langsmith-sdk-untrusted-deserialization-in-prompt-pull) (high, CVSS 7.1, published 27 May 2026) - [CVE-2024-58340: LangChain ReDoS in MRKLOutputParser](https://junglewise.ai/threats/cve-2024-58340-langchain-redos-in-mrkloutputparser) (high, CVSS 7.5, published 12 Jan 2026) - [CVE-2023-36188: LangChain remote code execution in PALChain Python exec method](https://junglewise.ai/threats/cve-2023-36188-langchain-remote-code-execution-in-palchain-python-exec-method) (critical, CVSS 9.8, published 6 Jul 2023) ## Most severe LangChain AI vulnerabilities - [CVE-2023-36188: LangChain remote code execution in PALChain Python exec method](https://junglewise.ai/threats/cve-2023-36188-langchain-remote-code-execution-in-palchain-python-exec-method) (critical, CVSS 9.8, published 6 Jul 2023) - [CVE-2024-58340: LangChain ReDoS in MRKLOutputParser](https://junglewise.ai/threats/cve-2024-58340-langchain-redos-in-mrkloutputparser) (high, CVSS 7.5, published 12 Jan 2026) - [CVE-2026-45134: LangChain LangSmith SDK untrusted deserialization in prompt pull methods](https://junglewise.ai/threats/cve-2026-45134-langchain-langsmith-sdk-untrusted-deserialization-in-prompt-pull) (high, CVSS 7.1, published 27 May 2026) - [CVE-2026-48775: LangChain LangGraph unsafe deserialization in JsonPlusSerializer](https://junglewise.ai/threats/cve-2026-48775-langchain-langgraph-unsafe-deserialization-in-jsonplusserializer) (medium, CVSS 6.8, published 16 Jun 2026) - [CVE-2026-71433: LangGraph incorrect authorization in Postgres and SQLite namespace matching](https://junglewise.ai/threats/cve-2026-71433-langgraph-incorrect-authorization-in-postgres-and-sqlite) (medium, CVSS 5.3, published 6 Aug 2026) - [CVE-2026-55443: LangChain path traversal and sandbox escape in file-search middleware and loaders](https://junglewise.ai/threats/cve-2026-55443-langchain-path-traversal-and-sandbox-escape-in-file-search) (medium, CVSS 5.1, published 22 Jun 2026) - [CVE-2026-106119: LangChain MongoDBChatMessageHistory query operator injection](https://junglewise.ai/threats/cve-2026-106119-langchain-is-a-framework-for-building-llm-powered-applications) (medium, CVSS 4, published 6 Oct 2026) - [CVE-2026-115883: LangGraph checkpoint savers namespace validation bypass in SQLite and Postgres](https://junglewise.ai/threats/cve-2026-115883-langgraph-checkpoint-savers-provide-postgres-and-sqlite-backed) (medium, CVSS 4, published 23 Oct 2026) - [CVE-2026-14742: LangChain LangGraph weak hash in Task Result Cache](https://junglewise.ai/threats/cve-2026-14742-langchain-langgraph-weak-hash-in-task-result-cache) (low, CVSS 3.1, published 5 Jul 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, level on the four before (1). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 1 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 1 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "LangChain AI vulnerabilities", https://junglewise.ai/threats/vendors/langchain-ai, 9 November 2026.