CVE-2026-26013 - LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages

CVE-2026-26013 - LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages

https://cvefeed.io/rssfeed/latest.atom / Wed, 02/11/2026 - 02:01
CVE ID : CVE-2026-26013
Published : Feb. 10, 2026, 10:17 p.m. | 2 hours, 3 minutes ago
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.
Severity: 3.7 | LOW
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