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Nuxt OG Image is vulnerable to Denial of Service via unbounded image dimensionsGHSA-c7xp-q6q8-hg76

GHSA-c7xp-q6q8-hg76 is a Uncontrolled Resource Consumption vulnerability in nuxt-og-image. A fix is available for nuxt-og-image — see the affected versions and patch details below.

Also known asCVE-2026-34404
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.

Exploitation and automatability from CISA’s SSVC triage for GHSA-c7xp-q6q8-hg76.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs27th percentile — riskier than 27% of all scored CVEsHighest risk
0.00%0.32%0.64%0.96%0.1%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

43other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
nuxt-og-imagenpm
237Kdownloads / week

Description

Product: Nuxt OG Image Version: 6.1.2 CWE-ID: CWE-404: Improper Resource Shutdown or Release Description: Failure to limit the length and width of the generated image results in a denial of service. Impact: Denial of service Exploitation condition: An external user Mitigation: Implement a limitation on the width and length of the generated image. Researcher: Dmitry Prokhorov (Positive Technologies)

Research

During the analysis of the nuxt-og-image package, which is shipped with the nuxt-seo package, a zero‑day vulnerability was discovered. This research revealed that the image‑generation component by the URI: /_og/d/ (and, in older versions, /og-image/) contains a Denial of Service (DoS) vulnerability. The issue arises because there is no restriction on the width and height parameters of the generated image. The vulnerability was reproduced using the standard configuration and the default templates.

Listing 1. The content of the configuration file nuxt.config.ts

export default defineNuxtConfig({
  modules: ['nuxt-og-image'],
  devServer: {
    host: 'web-test.local',
    port: 3000
  },
  site: {
    url: 'http://web-test.local:3000',
  },
  ogImage: {
    fonts: [
      'Inter:400', 
      'Inter:700'
    ],
  }
})

Vulnerability reproduction

To demonstrate the proof‑of‑concept, a request should be sent with the increased width and height parameters. This will cause a delay and exhaust the server’s resources during image generation.

Listing 2. HTTP-request example

GET /_og/d/og.png?width=20000&height=20000 HTTP/1.1
Host: web-test.local:3000

Figure 1. HTTP-response: denial-of-service error <img width="974" height="663" alt="image" src="https://github.com/user-attachments/assets/ff625249-2e0d-4a03-a734-3a77fd0cbb81" />

After sending a HTTP-request, the test server's memory was exhausted.

Figure 2. Video memory exhausted error <img width="863" height="1033" alt="image" src="https://github.com/user-attachments/assets/66b5919a-f039-468e-812e-1f709c468287" />

Credits

Researcher: Dmitry Prokhorov (Positive Technologies)

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmnuxt-og-imageall versions6.2.5npm install nuxt-og-image@6.2.5

Affected Products

1 product · 1 configurations
Application
og imagenuxt
< 6.2.5
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nuxt-og-image, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update nuxt-og-image to 6.2.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c7xp-q6q8-hg76 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

**Product:** Nuxt OG Image **Version:** 6.1.2 **CWE-ID:** [CWE-404](https://cwe.mitre.org/data/definitions/404.html): Improper Resource Shutdown or Release **Description:** Failure to limit the length and width of the generated image results in a denial of service. **Impact:** Denial of service **Exploitation condition:** An external user **Mitigation:** Implement a limitation on the width and length of the generated image. **Researcher:** Dmitry Prokhorov (Positive Technologies) ## Research During the analysis of the nuxt-og-image package, which is shipped with the nuxt-seo package, a zero
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