SSRF in Astro \@Astrojs\/node
CVE-2026-25545
Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page (eg. `404.astro` or `500.astro`) are vulnerable to SSRF. If the `Host:` header is changed to an attacker…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.014 (69.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Astro \@Astrojs\/node
- Withastro Astro — versions < 9.5.4
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-25545?
- CVE-2026-25545 is a high-severity vulnerability in Astro \@Astrojs\/node, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-02-24.
- How severe is CVE-2026-25545?
- High severity. CVSS v3 base score is 8.6 out of 10.