CVE-2025-58179: Server-Side Request Forgery via /_image endpoint in Astro Cloudflare adapter

September 4, 2025 (updated September 5, 2025)

When 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.

References

github.com/advisories/GHSA-qpr4-c339-7vq8
github.com/withastro/astro
github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252
github.com/withastro/astro/security/advisories/GHSA-qpr4-c339-7vq8
nvd.nist.gov/vuln/detail/CVE-2025-58179

Code Behaviors & Features

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