CVE Feed

    Dashboard / CVE / CVE-2026-26013

    CVE-2026-26013

    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.

    Published:Feb 10, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 10, 2026
    EPSS Score:0.00018
    CVSS Score:3.7

    Affected Products

    Vendor
    Langchain
    Product
    Langchain Core
    Vendor
    Langchain-ai
    Product
    Langchain

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High