{"apiVersion":"1.0","identifier":"CVE-2026-73423","description":"Astro is a web framework for content-driven websites. From 7.0.0 until 7.0.6, the composable astro/hono pipeline installs security.checkOrigin only through the middleware() primitive, while actions() and pages() can dispatch to user code independently. Mounting actions() before middleware(), as in the examples/advanced-routing example and Cloudflare Hono documentation, allows cross-origin form-encoded action requests to execute before the origin check, and using pages() without middleware() drops the check for on-demand endpoints and pages. The flaw enables blind write-only cross-site request forgery using the victim-s cookies against ActionHandler.handle and PagesHandler.handleWithErrorFallback when manifest.checkOrigin is enabled; the attacker can trigger a state-mutating action or endpoint handler but cannot read the cross-origin response. The default non-composable astro() pipeline is not affected. This issue is fixed in version 7.0.6.","publishedAt":"2026-08-12T21:17:41","lastModifiedAt":"2026-08-13T18:18:17","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73423","cvssScore":5.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00182,"riskScore":0.52,"affectedProduct":"Astro","affectedVersions":">=7.0.0,<7.0.6","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73423","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73423","en":"https://www.redsauce.net/en/cves/CVE-2026-73423","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73423","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73423","de":"https://www.redsauce.net/de/cves/CVE-2026-73423","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73423","el":"https://www.redsauce.net/el/cves/CVE-2026-73423"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73423"}}