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CVE-2026-0599— Unbounded External Image Fetch in Validation Leads to Resource-Exhaustion DoS in huggingface/text-generation-inference

Quick assessment

Affected
huggingface huggingface/text-generation-inference
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Text Generation Inference是Hugging Face开源的一个用于文本生成推理的 Rust、Python 和 gRPC 服务器。 Text Generation Inference 3.3.6版本存在资源管理错误漏洞，该漏洞源于VLM模式下输入验证期间无限制的外部图像获取，可能导致资源耗尽。

AI Predicted 7.5 Difficulty: Easy EPSS 29.88% · P98
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I. Basic Information for CVE-2026-0599

Vulnerability Information
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Vulnerability Title
Unbounded External Image Fetch in Validation Leads to Resource-Exhaustion DoS in huggingface/text-generation-inference
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in huggingface/text-generation-inference version 3.3.6 allows unauthenticated remote attackers to exploit unbounded external image fetching during input validation in VLM mode. The issue arises when the router scans inputs for Markdown image links and performs a blocking HTTP GET request, reading the entire response body into memory and cloning it before decoding. This behavior can lead to resource exhaustion, including network bandwidth saturation, memory inflation, and CPU overutilization. The vulnerability is triggered even if the request is later rejected for exceeding token limits. The default deployment configuration, which lacks memory usage limits and authentication, exacerbates the impact, potentially crashing the host machine. The issue is resolved in version 3.3.7.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Text Generation Inference 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Text Generation Inference是Hugging Face开源的一个用于文本生成推理的 Rust、Python 和 gRPC 服务器。 Text Generation Inference 3.3.6版本存在资源管理错误漏洞，该漏洞源于VLM模式下输入验证期间无限制的外部图像获取，可能导致资源耗尽。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
huggingface huggingface/text-generation-inference unspecified ~ 3.3.7 -

II. Public POCs for CVE-2026-0599

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III. Intelligence Information for CVE-2026-0599

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IV. Related Vulnerabilities

Same product: huggingface/text-generation-inference
Same vendor: huggingface
Same weakness: CWE-400

V. Comments for CVE-2026-0599

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