ByteOS Network

NVD Vulnerability Details :

CVE-2026-26013

Awaiting Analysis

Source-security-advisories@github.com

Published At-10 Feb, 2026 | 22:17

Updated At-11 Feb, 2026 | 15:27

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	3.7	LOW	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Type: Secondary

Version: 3.1

Base score: 3.7

Base severity: LOW

Vector:

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses

CWE ID	Type	Source
CWE-918	Primary	security-advisories@github.com

CWE ID: CWE-918

Type: Primary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/langchain-ai/langchain/commit/2b4b1dc29a833d4053deba4c2b77a3848c834565	security-advisories@github.com	N/A
https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.11	security-advisories@github.com	N/A
https://github.com/langchain-ai/langchain/security/advisories/GHSA-2g6r-c272-w58r	security-advisories@github.com	N/A