GHSA-c7xp-q6q8-hg76 — nuxt-og-image
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.
Nuxt OG Image is vulnerable to Denial of Service via unbounded image dimensions
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
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
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.
nuxt-og-imagenpmDescription
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
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | nuxt-og-image | all versions | 6.2.5npm install nuxt-og-image@6.2.5 |
Detection & mitigation playbook
Open-source dependencyDetect
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.
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.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-c7xp-q6q8-hg76 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-c7xp-q6q8-hg76. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-c7xp-q6q8-hg76 in your dependencies?
O3 Security finds GHSA-c7xp-q6q8-hg76 across npm dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.