CVE-2026-54300: @astrojs/netlify broadens Astro image.remotePatterns in Netlify Image CDN config

June 16, 2026 (updated July 18, 2026)

@astrojs/netlify converts Astro image.remotePatterns into Netlify Image CDN images.remote_images regular expressions with broader semantics than Astro’s canonical matcher. A single wildcard hostname such as *.example.com is converted to an optional subdomain regex, so the apex host matches. A single wildcard pathname such as /ok/* is converted without end anchoring, so deeper paths match by prefix.

References

github.com/advisories/GHSA-529g-xq4f-cw38
github.com/withastro/astro/security/advisories/GHSA-529g-xq4f-cw38
nvd.nist.gov/vuln/detail/CVE-2026-54300

Code Behaviors & Features

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