CVE-2024-3095: 
Python vulnerability analysis and mitigation

A Server-Side Request Forgery (SSRF) vulnerability (CVE-2024-3095) exists in the Web Research Retriever component of langchain-ai/langchain version 0.1.5. The vulnerability was discovered and disclosed on June 6, 2024, affecting systems using the specified version of langchain (NVD).

The vulnerability stems from the Web Research Retriever's failure to restrict requests to remote internet addresses, allowing it to reach local addresses. The CVSS v3.1 base score is 7.7 (HIGH) with a vector string of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N. The vulnerability is classified as CWE-918 (Server-Side Request Forgery) and is limited to GET requests, as POST requests are not possible (NVD).

The vulnerability enables attackers to execute port scans, access local services, and potentially read instance metadata from cloud environments. It can be exploited to abuse the Web Explorer server as a proxy for web attacks on third parties and interact with servers in the local network, including reading their response data. The impact on confidentiality, integrity, and availability is significant due to the potential for stolen credentials and state-changing interactions with internal APIs (NVD).

The vulnerability affects versions from 0.1.5 up to (excluding) 0.2.9. Users should upgrade to version 0.2.9 or later to mitigate this vulnerability (NVD).