CVE-2025-2828: SSRF Vulnerability in RequestsToolkit in langchain-ai/langchain

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 21.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-06-23 · updated 2026-06-17
Weakness: CWE-918

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.

Affected products

langchain-ai/langchain: before 0.0.28 — fixed in 0.0.28

How to fix

Upgrade to a fixed version: langchain-ai/langchain 0.0.28. Check the vendor advisory for mitigations.

References

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