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.
Published: 2026-02-02
Score: 7.5 High
EPSS: 22.5% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability occurs in Huggingface’s text‑generation‑inference component.6, when the router processes VLM mode inputs containing Markdown image links performs a the entire response body before decoding. This unbounded large amounts of network bandwidth, memory, and CPU, leading to resource exhaustion. It reflects an instance of CWE‑400, uncontrolled resource consumption. Even if the request is later rejected for exceeding token limits, the earlier resource consumption still occurs, potentially crashing the host.

Affected Systems

Huggingface’s text‑generation‑inference 3.3.6 is affected. The issue remains under default deployment configurations that lack authentication and memory limits. Versions 3.3.7 and later include the fix and are not vulnerable.

Risk and Exploitability

The CVSS score of 7.5 indicates a high‑severity flaw, while the EPSS score of 22% suggests a moderate to high probability of exploitation at this time. The vulnerability is not listed in the CISA KEV catalog. Attackers can exploit it remotely by sending an unauthenticated HTTP request containing a Markdown image link; the server will attempt to fetch the image, consuming network, memory, and CPU resources, which can lead to a denial of service or host crash.

Generated by OpenCVE AI on July 6, 2026 at 16:56 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Huggingface text‑generation‑inference component to version 3.3.7 or later to address the bug.
  • Configure the deployment with memory usage limits and resource quotas to prevent a single request from exhausting host resources.
  • Enable authentication or restrict VLM mode, and disable external image fetching during input validation to mitigate the risk of unbounded resource consumption.

Generated by OpenCVE AI on July 6, 2026 at 16:56 UTC.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-j7x9-7j54-2v3h Hugging Face Text Generation Inference vulnerable to Uncontrolled Resource Consumption
History

Wed, 04 Feb 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Huggingface
Huggingface text-generation-inference
Vendors & Products Huggingface
Huggingface text-generation-inference

Mon, 02 Feb 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 02 Feb 2026 11:00:00 +0000

Type Values Removed Values Added
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.
Title Unbounded External Image Fetch in Validation Leads to Resource-Exhaustion DoS in huggingface/text-generation-inference
Weaknesses CWE-400
References
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Huggingface Text-generation-inference
cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2026-02-02T12:49:08.220Z

Reserved: 2026-01-05T11:35:41.938Z

Link: CVE-2026-0599

cve-icon Vulnrichment

Updated: 2026-02-02T12:49:04.489Z

cve-icon NVD

Status : Deferred

Published: 2026-02-02T11:16:17.773

Modified: 2026-06-17T10:11:01.900

Link: CVE-2026-0599

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-06T17:00:05Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption