Atro CSRF Middleware Bypass (security.checkOrigin)

Description

A bug in Astro’s CSRF-protection middleware allows requests to bypass CSRF checks.

Recommendation

Update the astro package to the latest compatible version. Followings are version details:

• Affected version(s): < 4.16.17
• Patched version(s): 4.16.17

References

• GHSA-c4pw-33h3-35xw
• developer.mozilla.org
• CVE-2024-56140
• CWE-352
• CAPEC-310
• OWASP 2021-A1
• OWASP 2021-A6

Related Issues

• Astro vulnerable to URL manipulation via headers, leading to middleware and CVE-2025-61925 bypass - CVE-2025-64525
• Parse Server's GraphQL WebSocket endpoint bypasses security middleware - CVE-2026-32594
• @strapi/plugin-users-permissions leaks 3rd party authentication tokens and authentication bypass - CVE-2024-34065
• @hono/node-server: Middleware bypass via repeated slashes in serveStatic - CVE-2026-39406

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Tags:

npm

astro