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langchain-openai vulnerabilities

Vulnerabilities published for langchain-openai in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerability: 1

  1. CVE-2026-41488

    Low · CVSS 3.1EPSS 0.16%Fix available

    angchain-openai: Image token counting SSRF protection can be bypassed via DNS rebinding

    LangChain is a framework for building agents and LLM-powered applications. Prior to 1.1.14, langchain-openai's _url_to_size() helper (used by get_num_tokens_from_messages for image token counting) validated URLs for SSRF protection and then fetched them in a separate network operation with independent DNS resolution. This left a TOCTOU / DNS rebinding window: an attacker-controlled hostname could resolve to a public IP during validation and then to a private/localhost IP during the actual fetch.

    langchain-openaiPython
    • Update to 1.1.14
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

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