LangChain Vulnerable to Template Injection via Attribute Access in Prompt Templates

ContextA template injection vulnerability exists in LangChain's prompt template system that allows attackers to access Python object internals through template syntax. This vulnerability affects applications that accept untrusted template strings not just template variables in ChatPromptTemplate...

PYSEC-2026-2012 vLLM vulnerable to DoS via large Chat Completion or Tokenization requests with specially crafted `chat_template_kwargs`

Summary The /v1/chat/completions and /tokenize endpoints allow a chattemplatekwargs request parameter that is used in the code before it is properly validated against the chat template. With the right chattemplatekwargs parameters, it is possible to block processing of the API server for long...

vLLM vulnerable to DoS via large Chat Completion or Tokenization requests with specially crafted `chat_template_kwargs`

SummaryThe /v1/chat/completions and /tokenize endpoints allow a chattemplatekwargs request parameter that is used in the code before it is properly validated against the chat template. With the right chattemplatekwargs parameters, it is possible to block processing of the API server for long...

chat-with-mlx (>=0.1.0, <=0.1.11), crewai-files (>=1.9.0, <=1.10.1a1) +9 more potentially affected by CVE-2025-62707 via pypdf (4.0.2)

pypdf PYPI version 4.0.2 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - chat-with-mlx =0.1.0, =1.9.0, =3.2.0, =1.2.1, =1.0.9, =0.0.0, =0.1.2, =0.73.0, =0.94.0 Source cves: CVE-2025-62707 Source advisory: OSV:PYSEC-2026-183...

LLaMA Factory's Chat API Contains Critical SSRF and LFI Vulnerabilities

Summary A Server-Side Request Forgery SSRF vulnerability in the chat API allows any authenticated user to force the server to make arbitrary HTTP requests to internal and external networks. This can lead to the exposure of sensitive internal services, reconnaissance of the internal network, or...

PYSEC-2026-2013 vLLM: Resource-Exhaustion (DoS) through Malicious Jinja Template in OpenAI-Compatible Server

Summary A resource-exhaustion denial-of-service vulnerability exists in multiple endpoints of the OpenAI-Compatible Server due to the ability to specify Jinja templates via the chattemplate and chattemplatekwargs parameters. If an attacker can supply these parameters to the API, they can cause a...

PYSEC-2026-1573 LLaMA Factory's Chat API Contains Critical SSRF and LFI Vulnerabilities

Summary A Server-Side Request Forgery SSRF vulnerability in the chat API allows any authenticated user to force the server to make arbitrary HTTP requests to internal and external networks. This can lead to the exposure of sensitive internal services, reconnaissance of the internal network, or...

PYSEC-2026-1979 Transformers vulnerable to ReDoS attack through its SETTING_RE variable

A Regular Expression Denial of Service ReDoS vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the SETTINGRE variable within the transformers/commands/chat.py file. The...

aerospike-vector-search (>=1.0.0, <=4.2.0), aidbbot (>=0.1.0, <=0.1.2) +383 more potentially affected by CVE-2025-4565 via protobuf (>=5.26.0rc2, <=5.29.4)

protobuf PYPI version =5.26.0rc2, =1.0.0, =0.1.0, =0.82.3, =2.47.9, =0.1.8, =0.0.10, =0.4.1, =1.0.3, =1.0.0, =0.5.0rc2, =0.7.3, =0.9.0, =0.1.16, =1.1.0, =0.3.5, =0.4.1 and more Source cves: CVE-2025-4565 Source advisory: OSV:PYSEC-2026-1806...

PYSEC-2026-2023 vLLM Tool Schema allows DoS via Malformed pattern and type Fields

Summary The vLLM backend used with the /v1/chat/completions OpenAPI endpoint fails to validate unexpected or malformed input in the "pattern" and "type" fields when the tools functionality is invoked. These inputs are not validated before being compiled or parsed, causing a crash of the inference...

PYSEC-2026-1531 Langroid has a Code Injection vulnerability in LanceDocChatAgent through vector_store

Summary LanceDocChatAgent uses pandas eval through computefromdocs: https://github.com/langroid/langroid/blob/18667ec7e971efc242505196f6518eb19a0abc1c/langroid/vectorstore/base.pyL136-L150 As a result, an attacker may be able to make the agent run malicious commands through QueryPlan.dataframecal...

chat-with-mlx (>=0.1.0, <=0.1.5), megatts (3.0.0) potentially affected by CVE-2024-8966 via gradio (4.19.1)

gradio PYPI version 4.19.1 is affected by a known vulnerability. The following packages have a transitive dependency on gradio and may be impacted: - chat-with-mlx =0.1.0, =0.1.5 - megatts 3.0.0 Source cves: CVE-2024-8966 Source advisory: OSV:PYSEC-2026-1410...

eevee-chat (>=0.0.1, <=0.0.2.post1) potentially affected by CVE-2024-8966 via gradio (4.23.0)

gradio PYPI version 4.23.0 is affected by a known vulnerability. The following packages have a transitive dependency on gradio and may be impacted: - eevee-chat =0.0.1, =0.0.2.post1 Source cves: CVE-2024-8966 Source advisory: OSV:PYSEC-2026-1410...

Open WebUI Vulnerable to Cross-Site Scripting (XSS) via Chat File Upload

A Stored Cross-Site Scripting XSS vulnerability exists in the chat file upload functionality of open-webui/open-webui version 0.3.8. An attacker can inject malicious content into a file, which, when accessed by a victim through a URL or shared chat, executes JavaScript in the victim's browser. Th...

PYSEC-2026-1736 Open WebUI Vulnerable to Cross-Site Scripting (XSS) via Chat File Upload

A Stored Cross-Site Scripting XSS vulnerability exists in the chat file upload functionality of open-webui/open-webui version 0.3.8. An attacker can inject malicious content into a file, which, when accessed by a victim through a URL or shared chat, executes JavaScript in the victim's browser. Th...

langchain-core allows unauthorized users to read arbitrary files from the host file system

A vulnerability in langchain-core versions =0.1.17,=0.2.0,=0.3.0,0.3.15 allows unauthorized users to read arbitrary files from the host file system. The issue arises from the ability to create langchaincore.prompts.ImagePromptTemplate's and by extension langchaincore.prompts.ChatPromptTemplate's...

eevee-chat (>=0.0.1, <=0.0.2.post1) potentially affected by CVE-2024-12217 via gradio (4.23.0)

gradio PYPI version 4.23.0 is affected by a known vulnerability. The following packages have a transitive dependency on gradio and may be impacted: - eevee-chat =0.0.1, =0.0.2.post1 Source cves: CVE-2024-12217 Source advisory: OSV:PYSEC-2026-1418...

PYSEC-2026-1517 langchain-core allows unauthorized users to read arbitrary files from the host file system

A vulnerability in langchain-core versions =0.1.17,=0.2.0,=0.3.0,0.3.15 allows unauthorized users to read arbitrary files from the host file system. The issue arises from the ability to create langchaincore.prompts.ImagePromptTemplate's and by extension langchaincore.prompts.ChatPromptTemplate's...

chat-with-mlx (>=0.1.0, <=0.1.5), megatts (3.0.0) potentially affected by CVE-2024-12217 via gradio (4.19.1)

gradio PYPI version 4.19.1 is affected by a known vulnerability. The following packages have a transitive dependency on gradio and may be impacted: - chat-with-mlx =0.1.0, =0.1.5 - megatts 3.0.0 Source cves: CVE-2024-12217 Source advisory: OSV:PYSEC-2026-1418...

askdoc (0.1.1), chat-with-mlx (>=0.1.6, <=0.1.11) +1 more potentially affected by CVE-2024-12217 via gradio (4.19.2)

gradio PYPI version 4.19.2 is affected by a known vulnerability. The following packages have a transitive dependency on gradio and may be impacted: - askdoc 0.1.1 - chat-with-mlx =0.1.6, =0.1.11 - hugegraph-llm 1.3.0 Source cves: CVE-2024-12217 Source advisory: OSV:PYSEC-2026-1418...