Server-Side Request Forgery via /_image endpoint in Astro Cloudflare adapter

Description

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.

Recommendation

Update the @astrojs/cloudflare package to the latest compatible version. Followings are version details:

• Affected version(s): >= 11.0.3, < 12.6.6
• Patched version(s): 12.6.6

References

• GHSA-qpr4-c339-7vq8
• CVE-2025-58179
• CWE-918
• CAPEC-310
• OWASP 2021-A10
• OWASP 2021-A6

Related Issues

• Sentry's sensitive headers are leaked when `sendDefaultPii` is set to `true` - CVE-2025-65944
• Regular Expression Denial of Service (ReDoS) in lodash (GHSA-29mw-wpgm-hmr9) - CVE-2020-28500
• CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package - CVE-2025-58064
• Payload's SQLite adapter Session Fixation vulnerability (GHSA-26rv-h2hf-3fw4) - CVE-2025-4644

Tags:

npm

@astrojs/cloudflare