CVE-2026-33769

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

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 logic for /* wildcards is unanchored, so a pathname that contains the allowed prefix later in the path can still match. As a result, an attacker can fetch paths outside the intended allowlisted prefix on an otherwise allowed host. This issue has been patched in version 5.18.1.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-20

Affected software

VendorProductVersions
withastroastro>= 2.10.10, < 5.18.1

References

Timeline

Published
Mar 24, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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