CVE-2025-58179: Astro @astrojs/cloudflare

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Astro is a web framework for content-driven websites. Versions 11.0.3 through 12.6.5 are vulnerable to SSRF when using Astro's Cloudflare adapter. When 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. a 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. This issue is fixed in version 12.6.6.

Affected products

• Astro @astrojs/cloudflare: from 11.0.3, before 12.6.6 (fixed in 12.6.6)

Published 2025-09-05. Last modified 2026-06-17.