Advisories for Npm/Nuxt-Og-Image package

2026

Nuxt OG Image has unauthenticated SSRF via `fonts[].path` URL parameter

nuxt-og-image exposes an unauthenticated HTTP endpoint at /_og/d/** that base64url-decodes and JSON.parses a fonts URL segment, then passes each fonts[i].path value directly into fetch() server-side without any URL validation (no scheme allowlist, no loopback/RFC1918 block, no host allowlist, no DNS rebinding mitigation). Under the module's documented default configuration (security.strict = false, security.secret = "", restrictRuntimeImagesToOrigin = false), any caller able to reach the deployed Nuxt site can force the Nuxt …

nuxt-og-image SSRF — bypass of GHSA-pqhr-mp3f-hrpp / v6.2.5 fix (IPv6 + redirect)

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. The patch advisory states "Decimal/hexadecimal IP encoding bypasses are also handled" — that part is true (Node's WHATWG URL parser canonicalizes those forms before validation), but the v6.2.5 implementation misses two independent surfaces in the latest release 6.4.8: IPv6 prefix list is incomplete. The IPv6 branch checks only bare === "::1" || …

Nuxt OG Image is vulnerable to reflected XSS via query parameter injection into HTML attributes

Product: Nuxt OG Image Version: 6.1.2 CWE-ID: CWE-79: Improper Neutralization of Input During Web Page Generation Description: Incorrect parsing of GET parameters leads to the possibility of HTML injection and JavaScript code injection. Impact: Client-Side JavaScript Execution Exploitation condition: An external user Mitigation: Correct the logic of parsing GET parameters and their subsequent implementation into the generated page. Researcher: Dmitry Prokhorov (Positive Technologies)

Nuxt OG Image is vulnerable to Denial of Service via unbounded image dimensions

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)