EUVD-2026-70213Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/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
Network-exploitable but requires both a non-root base config and pathname-based middleware auth (AC:H); no privileges needed (PR:N); impact limited to bounded route access with no availability or scope change.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
3DescriptionCVE.org
Astro is a web framework for content-driven websites. Prior to 7.2.4, Astro stripped a configured non-root base path from request pathnames using a string-prefix check without verifying a path-segment boundary. With base "/app", a request to "/appX/admin" resolved internally to the protected "/admin" route while middleware observed "/appX/admin" in context.url.pathname. In applications that authorize base-prefixed routes by inspecting context.url.pathname, an unauthenticated remote attacker could bypass pathname-based middleware authorization and reach protected routes. This issue is fixed in version 7.2.4.
AnalysisAI
Base-path prefix bypass in Astro prior to 7.2.4 allows unauthenticated remote attackers to reach protected server-side routes by exploiting a missing path-segment boundary check in the framework's base-stripping logic. When a non-root base (e.g., '/app') is configured, a request to '/appX/admin' passes the router's prefix check and resolves to the internal '/admin' route while middleware still observes '/appX/admin' in context.url.pathname, causing pathname-based authorization rules to silently fail. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Three specific conditions must all be present simultaneously for exploitation: (1) Astro must be deployed in SSR mode with a live server runtime - fully static site exports do not execute middleware and are completely unaffected; (2) a non-root base path must be explicitly configured in astro.config.mjs (e.g., base: '/app' or base: '/docs'); and (3) the application's Astro middleware must authorize requests by comparing context.url.pathname directly against base-prefixed route patterns. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N, score 6.3) appropriately captures the key tension: the bypass is trivially simple to execute once the right deployment conditions are in place, but those conditions - a non-root base path combined with middleware-based pathname authorization in SSR mode - are not universal across Astro deployments. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Astro to version 7.2.4 or later; the patched release is available at https://github.com/withastro/astro/releases/tag/astro@7.2.4. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
SQL Injection exists in the Saxum Astro 4.0.14 component for Joomla!. Rated critical severity (CVSS 9.8), this vulnerabi
Astro is a web framework for content-driven websites. Rated high severity (CVSS 7.8), this vulnerability is remotely exp
Astro is a web framework. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication
Astro is a web framework for content-driven websites. Rated medium severity (CVSS 6.9), this vulnerability is remotely e
Astro is a web framework. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authenticatio
Astro is a web framework for content-driven websites. Rated medium severity (CVSS 5.5), this vulnerability is remotely e
Reflected XSS in Astro's server-side View Transition CSS generator affects all server-rendered or on-demand Astro applic
Authentication/authorization bypass in Clerk's official JavaScript SDKs (@clerk/nextjs, @clerk/nuxt, @clerk/astro, and t
Authorization bypass in the Astro web framework version 6.4.7 lets remote unauthenticated attackers reach protected rout
Regex metacharacter injection in @astrojs/netlify prior to 8.1.2 causes the Netlify Image CDN allowlist to be broader th
Sentry-Javascript is official Sentry SDKs for JavaScript. Rated high severity (CVSS 7.5), this vulnerability is remotely
Path override bypass in the @astrojs/vercel ISR entrypoint (versions 10.0.3 through 11.0.2) exposes edge-protected route
Same weakness CWE-187 – Partial String Comparison
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today