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CVE-2026-26013

3.7 · LOW

LangChain is a framework for building agents and LLM-powered applications.

Published Feb 10, 2026CWE-918EPSS 0.47%

Overview

CVE-2026-26013 is a low-severity vulnerability. It was published on February 10, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

LangChain is a framework for building agents and LLM-powered applications. Prior to 1.2.11, the ChatOpenAI.get_num_tokens_from_messages() method fetches arbitrary image_url values without validation when computing token counts for vision-enabled models. This allows attackers to trigger Server-Side Request Forgery (SSRF) attacks by providing malicious image URLs in user input. This vulnerability is fixed in 1.2.11.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/langchain-ai/langchain/commit/2b4b1dc29a833d4053deba4c2b77a3848c834565GitHubgithub.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.11GitHubgithub.com/langchain-ai/langchain/security/advisories/GHSA-2g6r-c272-w58r

How CyberStrike helps

Frequently asked questions

What is CVE-2026-26013?

CVE-2026-26013 is a low-severity vulnerability. It was published on February 10, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-26013?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-26013?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-26013?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-26013 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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