Nuxt OG Image vulnerable to Server-Side Request Forgery via user-controlled parametersGHSA-pqhr-mp3f-hrpp
MEDIUMGHSA-pqhr-mp3f-hrpp is a medium-severity (CVSS 5.3) vulnerability in nuxt-og-image. A fix is available for nuxt-og-image — see the affected versions and patch details below.
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: < 6.2.5 CWE-ID: CWE-918: Server-Side Request Forgery
Description
The image generation endpoint (/_og/d/) accepts user-controlled parameters that are passed to the server-side renderer without proper validation or filtering. An attacker can trigger server-side requests to internal network addresses through multiple vectors.
Impact
- Scanning internal ports and services inaccessible from the outside
- Reading sensitive data from cloud infrastructure metadata services (tokens, credentials) when verbose error output is enabled
Attack Vectors
Three distinct vectors were identified, all exploiting the same underlying lack of URL validation:
Vector 1: CSS background-image injection via style parameter
GET /_og/d/og.png?style=background-image:+url('http://127.0.0.1:8888/secret')
Vector 2: <img src> injection via html parameter
GET /_og/d/og.png?html=<img src="http://127.0.0.1:8888/secret">
When verbose errors are enabled, the response content is leaked in base64-encoded error messages.
Vector 3: SVG <image href> injection via html parameter
GET /_og/d/og.png?html=<svg><image href="http://127.0.0.1:8888/secret"></svg>
Mitigation
Fixed in v6.2.5. The image source plugin now blocks requests to private IP ranges (IPv4/IPv6), loopback addresses, link-local addresses, and cloud metadata endpoints. Decimal/hexadecimal IP encoding bypasses are also handled.
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-pqhr-mp3f-hrpp is resolved across your whole dependency graph.
Workarounds
Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.
Frequently Asked Questions
Is GHSA-pqhr-mp3f-hrpp in your dependencies?
Find it across npm, including transitive dependencies.