CVE-2026-73425
CVE-2026-73425 · @astrojs/netlify generates an overly-broad Netlify Image CDN allowlist because remotePatterns.pathname metacharacters are not escaped
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Astro is a web framework for content-driven websites. Prior to 8.1.2, the Astro Netlify adapter converts each image.remotePatterns entry into a regular expression written to .netlify/v1/config.json under images.remote_images for Netlify's Image CDN allowlist. In packages/integrations/netlify/src/index.ts, remotePatternToRegex() escapes dots in hostname values but interpolates literal pathname values without escaping regular expression metacharacters such as ., +, ?, (, and [, so a restrictive pathname such as /img/v1.0/file also matches metacharacter-adjacent paths, including paths that cross a segment. Netlify enforces the generated regular expression directly and Astro's matchPattern() helper does not revalidate the request, allowing optimization of images on an already-allowed host that the declared pathname was intended to exclude. This issue is fixed in version 8.1.2.
CVSS 3.7 · Low · EPSS 0.3% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
astro
- Versions
- < 8.1.2: Affected
No fix published
@astrojs/netlify npm
- Affected ranges
- SEMVER: < 8.1.2
Update to 8.1.2