PatchSiren

withastro CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

MEDIUM withastro CVE published 2026-09-02

CVE-2026-84376

The Astro web framework for content-driven websites, prior to version 7.2.4, contains a vulnerability that allows an unauthenticated remote attacker to bypass pathname-based middleware authorization. This issue arises from the framework's method of stripping a configured non-root base path from request pathnames using a string-prefix check without verifying a path-segment boundary. As a result, requests t [truncated]

MEDIUM withastro CVE published 2026-08-17

CVE-2026-73424

CVE-2026-73424 debrief based on the supplied source corpus. The Astro Vercel adapter in packages/integrations/vercel/src/serverless/entrypoint.ts accepts x_astro_path for the public /_isr function based only on the x-vercel-isr header, allowing unauthenticated GET requests to render routes protected only by Vercel edge path rules or split edge middleware. This issue is fixed in 11.0.3. Defenders should as [truncated]

LOW withastro CVE published 2026-08-12

CVE-2026-73425

The Astro web framework's Netlify adapter has a vulnerability prior to version 8.1.2, allowing for unintended image optimization on excluded paths. This issue arises from the conversion of image.remotePatterns entries into regular expressions written to .netlify/v1/config.json. The vulnerability impacts image security and access control, emphasizing the need for defenders to assess exposure and prioritize [truncated]

MEDIUM withastro CVE published 2026-08-12

CVE-2026-73423

CVE-2026-73423 is a medium-severity vulnerability in the Astro web framework that allows for blind write-only cross-site request forgery (CSRF) attacks. The flaw affects Astro versions 7.0.0 through 7.0.6 and enables attackers to trigger state-mutating actions or endpoint handlers using the victim's cookies, but does not allow reading of cross-origin responses. The issue is fixed in version 7.0.6.

MEDIUM withastro CVE published 2026-08-12

CVE-2026-73422

CVE-2026-73422 is a medium-severity vulnerability in Astro, a web framework for content-driven websites. The issue allows an attacker to inject arbitrary HTML or JavaScript via View Transition animation properties. This debrief provides an overview of the vulnerability, its impact, and recommended actions for defenders. The vulnerability exists in Astro versions from 2.9.0 until 7.1.0 and is fixed in vers [truncated]

HIGH withastro CVE published 2026-06-22

CVE-2026-50146

CVE-2026-50146 is a reflected XSS vulnerability in the Astro web framework. The vulnerability occurs when a component uses a client:* directive, allowing an attacker to inject arbitrary HTML by breaking out of the attribute context. This issue was fixed in Astro version 6.3.3. The vulnerability has a CVSS score of 7.1 and is considered HIGH severity. The CVE was published on June 22, 2026, and modified on [truncated]