@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.
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Fri, 24 Apr 2026 19:15:00 +0000
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Fri, 24 Apr 2026 17:30:00 +0000
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| 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. | |
| Title | @astrojs/cloudflare: SSRF via redirect following in Cloudflare image-binding-transform endpoint | |
| Weaknesses | CWE-918 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-24T17:04:06.118Z
Updated: 2026-04-24T18:33:24.408Z
Reserved: 2026-04-20T14:01:46.671Z
Link: CVE-2026-41321
Updated: 2026-04-24T18:27:22.745Z
Status : Received
Published: 2026-04-24T18:16:28.783
Modified: 2026-04-24T19:17:12.020
Link: CVE-2026-41321
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