What is CVE-2026-33769?

CVE-2026-33769 is a medium-severity vulnerability in Astro, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-03-24.

How severe is CVE-2026-33769?

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

Improper input validation in Astro

CVE-2026-33769

Astro is a web framework. From version 2.10.10 to before version 5.18.1, this issue concerns Astro's remotePatterns path enforcement for remote URLs used by server-side fetchers such as the image optimization endpoint. The path matching lo…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.

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

Astro
Withastro Astro — versions >= 2.10.10, < 5.18.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33769?: CVE-2026-33769 is a medium-severity vulnerability in Astro, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-03-24.
How severe is CVE-2026-33769?: Medium severity. CVSS v3 base score is 5.3 out of 10.