Nuxt OG Image cache poisoning through derivable cache keys on unsigned dynamic image routes
Nuxt OG Image generates OG Images with Vue templates in Nuxt. From 6.2.5 until 6.7.0, the dynamic /_og/d/*.png route accepts unsigned requests while resolvePathCacheKey() produces cache keys from the request path, site URL, and normalized rendering options exposed through image URLs and server responses. An unauthenticated attacker can provide attacker-controlled image data through the title parameter together with a derived cacheKey and populate the cache slot used for a legitimate Open Graph image, causing spoofed image content to be served to users. This issue is fixed in version 6.7.0.
Nuxt OG Image has unauthenticated SSRF via `fonts[].path` URL parameter
Nuxt OG Image generates OG Images with Vue templates in Nuxt. From 6.0.2 until 6.7.0, nuxt-og-image exposes the unauthenticated /_og/d/** route when the documented defaults security.strict = false and security.secret = "" are used, and base64url-decodes the fonts parameter through decodeOgImageParams. Attacker-controlled fonts[].path values flow through loadDefinedFonts into the font-assets/node.js binding, which performs a server-side fetch without validating the URL scheme, origin, resolved address, or redirects. This permits blind requests to loopback, private, link-local, cloud metadata, and other internal HTTP services, while differences
Nuxt OG Image generates OG Images with Vue templates in Nuxt. The isBlockedUrl() denylist introduced in nuxt-og-image@6.2.5 to remediate GHSA-pqhr-mp3f-hrpp (Dmitry Prokhorov / Positive Technologies, March 2026) is incomplete. It has an incomplete IPv6 prefix list and is missing redirect re-validation. This vulnerability is fixed in 6.4.9.
Nuxt OG Image vulnerable to Server-Side Request Forgery via user-controlled parameters
**Product:** Nuxt OG Image
**Version:** < 6.2.5
**CWE-ID:** [CWE-918](https://cwe.mitre.org/data/definitions/918.html): 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 Vec
Nuxt OG Image vulnerable to reflected XSS via query parameter injection into HTML attributes
Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation component by the URI: /_og/d/ (and, in older versions, /og-image/) contains a vulnerability that allows injection of arbitrary attributes into the HTML page body. This issue has been patched in version 6.2.5.
Nuxt OG Image vulnerable to DoS via image generation
Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, 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. This issue has been patched in version 6.2.5.