CVE-2026-7844 chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication

A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/listfiles/retrievefile/retrievefilecontent/deletefile of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component Compatible File Service...

CVE-2026-7844

A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/listfiles/retrievefile/retrievefilecontent/deletefile of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component Compatible File Service...

LangChain-Chatchat 授权问题漏洞

LangChain-Chatchat is a chatbot software developed based on the LangChain framework, open-sourced by Chatchat-Space. Versions of Langchain-Chatchat 0.3.1.3 and earlier had an authorization vulnerability. This vulnerability stems from a lack of authentication in the functions...

PT-2026-37091

Name of the Vulnerable Software and Affected Versions Langchain-Chatchat versions prior to 0.3.1.4 Description An issue exists in the Uploaded File Handler component within the get file id function of the file libs/chatchat-server/chatchat/server/api server/openai routes.py. Manipulation of this...

LangChain-Chatchat 加密问题漏洞

LangChain-Chatchat is a chatbot software developed based on the LangChain framework, open-sourced by Chatchat-Space. Versions of LangChain-Chatchat 0.3.1.3 and earlier had an encryption vulnerability. This vulnerability stems from a function in the Uploaded File Handler component, specifically th...

LangChain-Chatchat 加密问题漏洞

LangChain-Chatchat is a chatbot software developed based on the LangChain framework, open-sourced by Chatchat-Space. Versions of Langchain-Chatchat 0.3.1.3 and earlier had encryption-related vulnerabilities. These vulnerabilities stemmed from an issue in the Vision Chat Paste Image Handler...

CVE-2026-7844: Missing Authentication for Critical Function

A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/listfiles/retrievefile/retrievefilecontent/deletefile of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component Compatible File Service...

CVE-2026-7846: Time-of-check Time-of-use (TOCTOU) Race Condition

A vulnerability has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. Impacted is the function files of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component OpenAI-Compatible File Upload API. Such manipulation of the argument file.filename leads to...

CVE-2026-7847: Use of Insufficiently Random Values

A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function getfileid of the file libs/chatchat-server/chatchat/server/apiserver/openairoutes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently rando...

PT-2026-37082

Name of the Vulnerable Software and Affected Versions Langchain-Chatchat versions prior to 0.3.1.4 Description A flaw in the Vision Chat Paste Image Handler component allows for the use of a weak hash. This occurs during the manipulation of the paste image.image data argument within the...

PT-2026-37083

Name of the Vulnerable Software and Affected Versions Langchain-Chatchat versions prior to 0.3.1.4 Description A time-of-check time-of-use TOCTOU issue exists in the OpenAI-Compatible File Upload API component. Manipulation of the file.filename argument within the files function located in the...

📄 LangChain Core Insecure Deserialization

LangChain Core versions prior to 1.2.5 and 0.3.81 suffer from a deserialization vulnerability that allows for server-side template injection that can lead to remote code execution. Exploit Title: LangChain Core - SSTI/RCE Date: 2025-12-29 Exploit Author: Mohammed Idrees Banyamer Author Country:...

LangChain-Chatchat 竞争条件问题漏洞

LangChain-Chatchat is a chatbot software developed based on the LangChain framework, open-sourced by Chatchat-Space. Versions of Langchain-Chatchat 0.3.1.3 and earlier contained a race condition vulnerability. This vulnerability stemmed from the operation of the files function in the...

CVE-2026-7845: Use of Weak Hash

A flaw has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. This issue affects the function PIL.Image.tobytes of the file libs/chatchat-server/chatchat/webuipages/dialogue/dialogue.py of the component Vision Chat Paste Image Handler. This manipulation of the argument...

LangChain Core 1.2.4 - SSTI/RCE

Exploit Title: LangChain Core - SSTI/RCE Date: 2025-12-29 Exploit Author: Mohammed Idrees Banyamer Author Country: Jordan Contact: @banyamersecurity Instagram GitHub: https://github.com/mbanyamer Vendor Homepage: https://www.langchain.com/ Software Link: https://pypi.org/project/langchain-core/...

CVE-2026-41481

A flaw was found in LangChain and langchain-text-splitters. This vulnerability, a Server-Side Request Forgery SSRF bypass, allows a remote attacker to redirect a seemingly safe URL to internal network resources. By exploiting unvalidated redirects, an attacker could access sensitive data from...

CVE-2026-41488

A flaw was found in langchain-openai. A remote attacker could exploit a Time-of-Check to Time-of-Use TOCTOU vulnerability, also known as a DNS rebinding vulnerability. This occurs because the urltosize helper, used for image token counting, validates URLs for Server-Side Request Forgery SSRF...

PYSEC-2026-76

LangChain is a framework for building agents and LLM-powered applications. Prior to 1.1.14, langchain-openai's urltosize helper used by getnumtokensfrommessages for image token counting validated URLs for SSRF protection and then fetched them in a separate network operation with independent DNS...

PYSEC-2026-77

LangChain is a framework for building agents and LLM-powered applications. Prior to langchain-text-splitters 1.1.2, HTMLHeaderTextSplitter.splittextfromurl validated the initial URL using validatesafeurl but then performed the fetch with requests.get with redirects enabled the default. Because...

PYSEC-2026-76

LangChain is a framework for building agents and LLM-powered applications. Prior to 1.1.14, langchain-openai's urltosize helper used by getnumtokensfrommessages for image token counting validated URLs for SSRF protection and then fetched them in a separate network operation with independent DNS...