Impact Score: 5/10
Astro [email protected] — Release Notes & Engineering Impact
Source available — automated, not human-reviewed
Component: astro · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
Astro [email protected]. Source highlight: Fixes a case where build's `process.env` would be inlined in the server output
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
🔧 Bug Fixes & Patches (3)
- Fixes a case where build's `process.env` would be inlined in the server output
- Improves fallbacks generation when using the experimental Fonts API
- Improves `X-Forwarded` header validation to prevent cache poisoning and header injection attacks. Now properly validates `X-Forwarded-Proto`, `X-Forwarded-Host`, and `X-Forwarded-Port` headers against configured `allowedDomains` patterns, rejecting malformed or suspicious values. This is especially important when running behind a reverse proxy or load balancer.
📄 View Raw Release Notes (Original Developer Log)
### Patch Changes
- [#14712](https://github.com/withastro/astro/pull/14712) [`91780cf`](https://github.com/withastro/astro/commit/91780cffa7cf97cc22694d55962710609a5475b0) Thanks [@florian-lefebvre](https://github.com/florian-lefebvre)! - Fixes a case where build's `process.env` would be inlined in the server output
- [#14713](https://github.com/withastro/astro/pull/14713) [`666d5a7`](https://github.com/withastro/astro/commit/666d5a7ef486aa57f20f87b6cb210619dabd9c4c) Thanks [@florian-lefebvre](https://github.com/florian-lefebvre)! - Improves fallbacks generation when using the experimental Fonts API
- [#14743](https://github.com/withastro/astro/pull/14743) [`dafbb1b`](https://github.com/withastro/astro/commit/dafbb1ba29912099c4faff1440033edc768af8b4) Thanks [@matthewp](https://github.com/matthewp)! - Improves `X-Forwarded` header validation to prevent cache poisoning and header injection attacks. Now properly validates `X-Forwarded-Proto`, `X-Forwarded-Host`, and `X-Forwarded-Port` headers against configured `allowedDomains` patterns, rejecting malformed or suspicious values. This is especially important when running behind a reverse proxy or load balancer.