CVE-2025-58179: @astrojs/cloudflare Server-Side Request Forgery Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qpr4-c339-7vq8",
  "modified" : "2025-09-05T16:10:42Z",
  "published" : "2025-09-04T19:24:11Z",
  "aliases" : [ "CVE-2025-58179" ],
  "summary" : "Server-Side Request Forgery via /_image endpoint in Astro Cloudflare adapter",
  "details" : "### Summary\n\nWhen using Astro's Cloudflare adapter (`@astrojs/cloudflare`) configured with `output: 'server'` while using the default `imageService: 'compile'`, the generated image optimization endpoint doesn't check the URLs it receives, allowing content from unauthorized third-party domains to be served.\n\n### Details\n\nOn-demand rendered sites built with Astro include an `/_image` endpoint, which returns optimized versions of images.\n\nThe `/_image` endpoint is restricted to processing local images bundled with the site and also supports remote images from domains the site developer has manually authorized (using the [`image.domains`](https://docs.astro.build/en/reference/configuration-reference/#imagedomains) or [`image.remotePatterns`](https://docs.astro.build/en/reference/configuration-reference/#imageremotepatterns) options).\n\nHowever, a bug in impacted versions of the `@astrojs/cloudflare` adapter for deployment on Cloudflare’s infrastructure, allows an attacker to bypass the third-party domain restrictions and serve any content from the vulnerable origin.\n\n### PoC\n\n1. Create a new minimal Astro project (`astro@5.13.3`)\n\n2. Configure it to use the Cloudflare adapter (`@astrojs/cloudflare@12.6.5`) and server output:\n\n   ```js\n   // astro.config.mjs\n   import { defineConfig } from 'astro/config';\n   import cloudflare from '@astrojs/cloudflare';\n\n   export default defineConfig({\n     output: 'server',\n     adapter: cloudflare(),\n   });\n   ```\n\n3. Deploy to Cloudflare Pages or Workers\n\n4. Append `/_image?href=https://placehold.co/600x400` to the deployment URL.\n\n7. This will serve the placeholder image from the unauthorised `placehold.co` domain.\n\n### Impact\n\nAllows a non-authorized third-party to create URLs on an impacted site’s origin that serve unauthorized content. This includes the risk of server-side request forgery (SSRF) and by extension cross-site scripting (XSS) if a user follows a link to a maliciously crafted URL.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@astrojs/cloudflare"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.3"
      }, {
        "fixed" : "12.6.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/withastro/astro/security/advisories/GHSA-qpr4-c339-7vq8"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-58179"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/withastro/astro"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-04T19:24:11Z",
    "nvd_published_at" : "2025-09-05T00:15:32Z"
  }
}