{"id":"EUVD-2026-25579","revision":null,"records":[{"revision":"29fc9859fa7a48f9890d714cc273079e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-41321","aliases":[],"title":"@astrojs/cloudflare: SSRF via redirect following in Cloudflare image-binding-transform endpoint","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.","state":0,"publishedAt":"2026-04-24T17:04:06.118+00:00","modifiedAt":"2026-04-24T18:33:24.408+00:00","affected":[{"ecosystem":"Vendor product","name":"@astrojs/cloudflare","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"withastro\",\n                    \"product\": \"@astrojs/cloudflare\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 13.1.10\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","score":2.2,"severity":"LOW"}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-88gm-j2wx-58h6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-41321","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-41321","identifiers":["CVE-2026-41321"]},"retained":false,"historicalAffected":[]},{"revision":"479dff6bb27e4185ba681bd8e515bc0d","observedAt":"2026-10-28T05:08:02.977+00:00","statement":{"source":"euvd","id":"EUVD-2026-25579","aliases":["CVE-2026-41321","GHSA-88gm-j2wx-58h6"],"title":"@astrojs/cloudflare is an SSR adapter for use with Cloudflare Workers targets. 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This vulnerability is fixed in 13.1.10.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","score":2.2,"severity":null}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-88gm-j2wx-58h6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-25579","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 24, 2026, 5:04:06 PM","dateUpdated":"Apr 24, 2026, 6:33:24 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-25579","identifiers":["EUVD-2026-25579","CVE-2026-41321","GHSA-88gm-j2wx-58h6"]},"retained":false,"historicalAffected":[]},{"revision":"6fd266b186ec4c78b78650de817948d1","observedAt":"2026-10-27T10:10:11.623+00:00","statement":{"source":"nvd","id":"CVE-2026-41321","aliases":[],"title":"@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'…","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.","state":0,"publishedAt":"2026-04-24T18:16:28.783+00:00","modifiedAt":"2026-10-26T21:10:00.17+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","score":2.2,"severity":"LOW"}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-88gm-j2wx-58h6"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-41321","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-918"],"productCriteria":[],"sourceDates":{"published":"2026-04-24T18:16:28.783","lastModified":"2026-10-26T21:10:00.170"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-41321","identifiers":["CVE-2026-41321"]},"retained":false,"historicalAffected":[]},{"revision":"e68262c02d484a8b8fe52b67d84120b3","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-88gm-j2wx-58h6","aliases":["CVE-2026-41321"],"title":"Cloudflare has SSRF via redirect following through its image-binding-transform endpoint (incomplete fix for GHSA-qpr4)","description":"## Summary\n\nThe `fetch()` call for remote images in `packages/integrations/cloudflare/src/utils/image-binding-transform.ts` (line 28) 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.\n\nAll three other image fetch paths in the codebase correctly use `{ redirect: 'manual' }`. This is an incomplete fix for GHSA-qpr4-c339-7vq8.\n\nConfirmed on HEAD.\n\n## Root Cause\n\n`image-binding-transform.ts` line 28:\n\n    const content = await (isRemotePath(href) ? fetch(imageSrc) : assets.fetch(imageSrc));\n\nMissing `{ redirect: 'manual' }`. The three protected paths:\n\n    // image-passthrough-endpoint.ts:23\n    response = await fetch(href, { redirect: 'manual' });\n\n    // assets/endpoint/shared.ts:11\n    const res = await fetch(src, { redirect: 'manual' });\n\n    // assets/utils/remoteProbe.ts:53\n    const response = await fetch(url, { redirect: 'manual' });\n\n## PoC\n\nDemonstrated with Node.js that `fetch()` without `redirect: 'manual'` follows 302 redirects to arbitrary destinations:\n\n    # Server A (allowed domain) returns 302 → Server B (internal)\n    fetch('http://allowed:19741/img.jpg')                        → follows 302 → hits http://internal:19742/secret\n    fetch('http://allowed:19741/img.jpg', {redirect:'manual'})   → returns 302, internal server NOT hit\n\nAttack path: attacker finds an open redirect on an allowed domain, crafts `/_image?href=https://allowed-cdn.com/redirect?url=http://internal-service/`, and the Worker follows the redirect to the unauthorized destination.\n\n## Impact\n\nBypasses the `image.domains` and `image.remotePatterns` allowlist for the default Cloudflare image service (`cloudflare-binding`). Enables blind SSRF to domains not in the allowlist. Same vulnerability class as GHSA-qpr4-c339-7vq8 (HIGH) which fixed the passthrough endpoint but missed this one.\n\n## Suggested Fix\n\n    const content = await (isRemotePath(href) ? fetch(imageSrc, { redirect: 'manual' }) : assets.fetch(imageSrc));","state":0,"publishedAt":"2026-04-23T21:52:03+00:00","modifiedAt":"2026-05-05T16:05:51.817634+00:00","affected":[{"ecosystem":"npm","name":"@astrojs/cloudflare","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"13.1.10"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-88gm-j2wx-58h6","https://nvd.nist.gov/vuln/detail/CVE-2026-41321","https://github.com/withastro/astro/commit/a43eb4b40b4f81530e3c9b5e2959495900320433","https://github.com/advisories/GHSA-qpr4-c339-7vq8","https://github.com/withastro/astro","https://github.com/withastro/astro/releases/tag/%40astrojs%2Fcloudflare%4013.1.10"],"sourceUrl":"https://github.com/advisories/GHSA-88gm-j2wx-58h6","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-88gm-j2wx-58h6","identifiers":["GHSA-88gm-j2wx-58h6","CVE-2026-41321"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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