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CVE-2026-41488

Estado: AnalizadaBaja (3.1)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Langchain — Langchain-openai

CWE

Referencias

JSON original (NVD)

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          "attackComplexity": "HIGH",
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          "privilegesRequired": "NONE",
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  "published": "2026-04-24T21:16:19.637",
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    }
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  "lastModified": "2026-06-17T10:46:47.187",
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