CVE-2026-41321

Published: Apr 24, 2026Modified: Apr 27, 2026Deferred

2.2

Vector

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

Exploitability: 0.7 / Impact: 1.4

Source: security-advisories@github.com (Secondary)

Description

@astrojs/cloudflare is an SSR adapter for use with Cloudflare Workers targets. Prior to 13.1.10, the fetch() call for remote images in packages/integrations/cloudflare/src/utils/image-binding-transform.ts uses the default redirect: 'follow' behavior. This allows the Cloudflare Worker to follow HTTP redirects to arbitrary URLs, bypassing the isRemoteAllowed() domain allowlist check which only validates the initial URL. This vulnerabiity is caused by an incomplete fix for CVE-2025-58179. This vulnerability is fixed in 13.1.10.

Related CWEs

CWE-918

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (2)

https://github.com/withastro/astro/security/advisories/GHSA-88gm-j2wx-58h6

Source: security-advisories@github.com

https://github.com/withastro/astro/security/advisories/GHSA-88gm-j2wx-58h6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.