What is CVE-2026-54300?

CVE-2026-54300 is a medium-severity vulnerability in Withastro Astro, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-06-22.

How severe is CVE-2026-54300?

Medium severity. CVSS v3 base score is 5.3 out of 10.

SSRF in Withastro Astro

CVE-2026-54300

@astrojs/netlify is an adapter that allows Astro to deploy your hybrid or server rendered site to Netlify. Prior to 7.0.13, @astrojs/netlify converts Astro image.remotePatterns into Netlify Image CDN images.remote_images regular expression…

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Withastro Astro — versions < 7.0.13

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54300?: CVE-2026-54300 is a medium-severity vulnerability in Withastro Astro, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-06-22.
How severe is CVE-2026-54300?: Medium severity. CVSS v3 base score is 5.3 out of 10.