PYSEC-2026-1561 LlamaIndex affected by a Denial of Service (DOS) in JSONReader

A denial of service vulnerability exists in the JSONReader component of the run-llama/llamaindex repository, specifically in version v0.12.37. The vulnerability is caused by uncontrolled recursion when parsing deeply nested JSON files, which can lead to Python hitting its maximum recursion depth...

LlamaIndex vulnerable to Path Traversal attack through its encode_image function

A path traversal vulnerability exists in run-llama/llamaindex versions 0.11.23 through 0.12.40, specifically within the encodeimage function in genericutils.py. This vulnerability allows an attacker to manipulate the imagepath input to read arbitrary files on the server, including sensitive syste...

LlamaIndex vulnerable to DoS attack through uncontrolled recursive JSON parsing

The JSONReader in run-llama/llamaindex versions 0.12.28 is vulnerable to a stack overflow due to uncontrolled recursive JSON parsing. This vulnerability allows attackers to trigger a Denial of Service DoS by submitting deeply nested JSON structures, leading to a RecursionError and crashing...

PYSEC-2026-1566 LlamaIndex vulnerable to data loss through hash collisions in its DocugamiReader class

A vulnerability in the DocugamiReader class of the run-llama/llamaindex repository, up to but excluding version 0.12.41, involves the use of MD5 hashing to generate IDs for document chunks. This approach leads to hash collisions when structurally distinct chunks contain identical text, resulting ...

PYSEC-2026-1559 LlamaIndex vulnerable to DoS attack through uncontrolled recursive JSON parsing

The JSONReader in run-llama/llamaindex versions 0.12.28 is vulnerable to a stack overflow due to uncontrolled recursive JSON parsing. This vulnerability allows attackers to trigger a Denial of Service DoS by submitting deeply nested JSON structures, leading to a RecursionError and crashing...

PYSEC-2026-1564 LlamaIndex has Incomplete Documentation of Program Execution related to JsonPickleSerializer component

Incomplete Documentation of Program Execution exists in the run-llama/llamaindex library's JsonPickleSerializer component, affecting versions v0.12.27 through v0.12.40. This vulnerability allows remote code execution due to an insecure fallback to Python's pickle module. JsonPickleSerializer...

LlamaIndex is vulnerable to Path Traversal attack through its ObsidianReader class

A vulnerability in the ObsidianReader class in LlamaIndex Readers Integration: Obsidian before version 0.5.1 from the run-llama/llamaindex repository versions 0.12.23 to 0.12.28 allows for arbitrary file read through symbolic links. The ObsidianReader fails to resolve symlinks to their real paths...

PYSEC-2026-1568 LlamaIndex is vulnerable to Path Traversal attack through its ObsidianReader class

A vulnerability in the ObsidianReader class in LlamaIndex Readers Integration: Obsidian before version 0.5.1 from the run-llama/llamaindex repository versions 0.12.23 to 0.12.28 allows for arbitrary file read through symbolic links. The ObsidianReader fails to resolve symlinks to their real paths...

LlamaIndex vulnerable to Creation of Temporary File in Directory with Insecure Permissions

A vulnerability in the defaultjsonalyzer function of the JSONalyzeQueryEngine in the run-llama/llamaindex repository allows for SQL injection via prompt injection. This can lead to arbitrary file creation and Denial-of-Service DoS attacks. The vulnerability affects the latest version and is fixed...

LlamaIndex includes an exec call for `import {cls_name}`

An issue was discovered in llamaindex before 0.10.38. download/integration.py includes an exec call for import clsname...

PYSEC-2026-395 LlamaIndex includes an exec call for `import {cls_name}`

An issue was discovered in llamaindex before 0.10.38. download/integration.py includes an exec call for import clsname...

From Storage to Steering: Memory Control Flow Attacks on LLM Agents

Modern agentic systems allow Large Language Model LLM agents to tackle complex tasks through extensive tool usage, forming structured control flows of tool selection and execution. Existing security analyses often treat these control flows as ephemeral, one-off sessions, overlooking the persisten...

LlamaIndex 资源管理错误漏洞

LlamaIndex is a data framework for an LLM application developed by LlamaIndex. Version 0.12.23 of LlamaIndex contains a vulnerability related to resource management. This vulnerability stems from a resource management flaw in the SimpleDirectoryReader component, which may lead to memory exhaustio...

CVE-2024-58339

LlamaIndex run-llama/llamaindex versions up to and including 0.12.2 contain an uncontrolled resource consumption vulnerability in the VannaPack VannaQueryEngine implementation. The customquery logic generates SQL statements from a user-supplied prompt and executes them via vn.runsql without...

CVE-2024-14021

LlamaIndex run-llama/llamaindex versions up to and including 0.11.6 contain an unsafe deserialization vulnerability in BGEM3Index.loadfromdisk in llamaindex/indices/managed/bgem3/base.py. The function uses pickle.load to deserialize multiembedstore.pkl from a user-supplied persistdir without...

PYSEC-2026-85

LlamaIndex run-llama/llamaindex versions up to and including 0.11.6 contain an unsafe deserialization vulnerability in BGEM3Index.loadfromdisk in llamaindex/indices/managed/bgem3/base.py. The function uses pickle.load to deserialize multiembedstore.pkl from a user-supplied persistdir without...

PYSEC-2026-86

LlamaIndex run-llama/llamaindex versions up to and including 0.12.2 contain an uncontrolled resource consumption vulnerability in the VannaPack VannaQueryEngine implementation. The customquery logic generates SQL statements from a user-supplied prompt and executes them via vn.runsql without...

PYSEC-2026-86

LlamaIndex run-llama/llamaindex versions up to and including 0.12.2 contain an uncontrolled resource consumption vulnerability in the VannaPack VannaQueryEngine implementation. The customquery logic generates SQL statements from a user-supplied prompt and executes them via vn.runsql without...

CVE-2024-14021

Summary: CVE-2024-14021 affects LlamaIndex up to 0.11.6, where BGEM3Index.load_from_disk() deserializes multi_embed_store.pkl from a user-supplied persist_dir using pickle.load() without validation, enabling arbitrary code execution when the index is loaded from disk. This is reported across mult...

CVE-2024-14021 LlamaIndex <= 0.11.6 BGEM3Index Unsafe Deserialization

LlamaIndex run-llama/llamaindex versions up to and including 0.11.6 contain an unsafe deserialization vulnerability in BGEM3Index.loadfromdisk in llamaindex/indices/managed/bgem3/base.py. The function uses pickle.load to deserialize multiembedstore.pkl from a user-supplied persistdir without...