CVE-2026-41321

LOW
INFO Priority: 0.01 BB Relevance: 39/100
Published: 2026-04-24 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: None
S: Unchanged
C: None
I: None
A: Low

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.

Weakness Classification (1)

Bug Bounty Relevance

39 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

2.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

0.24%
Raw Score 0.002420
Percentile 15.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00242
2026-10-28
0.00242

Intelligence Sources

nvd ref →