Description
A Server-Side Request Forgery (SSRF) vulnerability exists in the RequestsToolkit component of the langchain-community package (specifically, langchain_community.agent_toolkits.openapi.toolkit.RequestsToolkit) in langchain-ai/langchain version 0.0.27. This vulnerability occurs because the toolkit does not enforce restrictions on requests to remote internet addresses, allowing it to also access local addresses. As a result, an attacker could exploit this flaw to perform port scans, access local services, retrieve instance metadata from cloud environments (e.g., Azure, AWS), and interact with servers on the local network. This issue has been fixed in version 0.0.28.
References (2)
Core 2
Core References
Exploit, Third Party Advisory
https://huntr.com/bounties/8f771040-7f34-420a-b96b-5b93d4a99afc
Scores
CVSS v3
10.0
EPSS
0.0017
EPSS Percentile
38.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-918
Status
published
Products (2)
langchain/langchain
< 0.0.28
pypi/langchain-community
0 - 0.0.28PyPI
Published
Jun 23, 2025
Tracked Since
Feb 18, 2026