CVEvulnerability
CVE-2026-26013
3.7 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-02-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-918
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.
Affected configurations
• langchain langchain core (< 1.2.11)
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://github.com/langchain-ai/langchain/commit/2b4b1dc29a833d4053deba4c2b77a3848c834565 Patch
- https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.11 Product, Release Notes
- https://github.com/langchain-ai/langchain/security/advisories/GHSA-2g6r-c272-w58r Mitigation, Vendor Advisory