CVE-2026-41067 Astro: XSS via incomplete `</script>` sanitization in `define:vars` allows case-insensitive and whitespace-based bypass

Astro is a web framework. Prior to 6.1.6, the defineScriptVars function in Astro's server-side rendering pipeline uses a case-sensitive regex //g to sanitize values injected into inline tags via the define:vars directive. HTML parsers close elements case-insensitively and also accept whitespace o...

CVE-2026-41067 Astro: XSS via incomplete `</script>` sanitization in `define:vars` allows case-insensitive and whitespace-based bypass

Astro is a web framework. Prior to 6.1.6, the defineScriptVars function in Astro's server-side rendering pipeline uses a case-sensitive regex //g to sanitize values injected into inline tags via the define:vars directive. HTML parsers close elements case-insensitively and also accept whitespace o...

CVE-2026-41067

Summary: CVE-2026-41067 affects Astro’s SSR pipeline, where defineScriptVars sanitizes inline script values using a case-sensitive //g regex. This fails to match closing script tags when payloads use case variants (e.g., ), whitespace before &gt; (), or self-closing forms (), allowing injected HT...

Astro 安全漏洞

Astro is a content-driven website framework developed by Astro OpenSource. Versions of Astro prior to 10.0.5 contained security vulnerabilities; these vulnerabilities stemmed from incorrect status codes returned when processing the if-match header, which could lead to static resource caching erro...

Astro 代码问题漏洞

Astro is a content-driven website framework developed by Astro OpenSource. Versions of Astro prior to 13.1.10 had code vulnerabilities. These vulnerabilities stemmed from the use of default redirection behavior in fetch calls, which could allow Cloudflare Workers to bypass domain whitelist checks...

Astro 跨站脚本漏洞

Astro is a content-driven website framework developed by Astro OpenSource. Versions of Astro prior to 6.1.6 contained a cross-site scripting vulnerability. This vulnerability stemmed from the use of case-sensitive regular expressions in the defineScriptVars function, which cleaned and injected...

GHSA-C57F-MM3J-27Q9 Astro: Cache Poisoning due to incorrect error handling when if-match header is malformed

Summary Requesting a static JS/CSS resource from the astro path with an incorrect or malformed if-match header returns a 500 error with a one-year cache lifetime instead of 412 in some cases. As a result, all subsequent requests to that file — regardless of the if-match header — will be served a...

Astro: Cache Poisoning due to incorrect error handling when if-match header is malformed

Summary Requesting a static JS/CSS resource from the astro path with an incorrect or malformed if-match header returns a 500 error with a one-year cache lifetime instead of 412 in some cases. As a result, all subsequent requests to that file — regardless of the if-match header — will be served a...

PT-2026-34681

Summary Requesting a static JS/CSS resource from the astro path with an incorrect or malformed if-match header returns a 500 error with a one-year cache lifetime instead of 412 in some cases. As a result, all subsequent requests to that file — regardless of the if-match header — will be served a...

EUVD-2026-14984

Astro: Remote allowlist bypass via unanchored matchPathname wildcard...

EUVD-2026-14982

Astro: Unauthenticated Path Override via x-astro-path / xastropath...

CVE-2026-33769

Astro is a web framework. From version 2.10.10 to before version 5.18.1, this issue concerns Astro's remotePatterns path enforcement for remote URLs used by server-side fetchers such as the image optimization endpoint. The path matching logic for / wildcards is unanchored, so a pathname that...

CVE-2026-29772

Astro is a web framework. Prior to version 10.0.0, Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achiev...

CVE-2026-33768

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

CVE-2026-33768

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel...

CVE-2026-33769

Astro is a web framework. From version 2.10.10 to before version 5.18.1, this issue concerns Astro's remotePatterns path enforcement for remote URLs used by server-side fetchers such as the image optimization endpoint. The path matching logic for / wildcards is unanchored, so a pathname that...

CVE-2026-29772

Astro is a web framework. Prior to version 10.0.0, Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achiev...

CVE-2026-33769

Astro is a web framework. From version 2.10.10 to before version 5.18.1, this issue concerns Astro's remotePatterns path enforcement for remote URLs used by server-side fetchers such as the image optimization endpoint. The path matching logic for / wildcards is unanchored, so a pathname that...

CVE-2026-33769

CVE-2026-33769 affects the Astro web framework. From version 2.10.10 up to before 5.18.1, the remotePatterns path enforcement for remote URLs used by server-side fetchers (e.g., image optimization) uses an unanchored match for /* wildcards, allowing a pathname containing the allowed prefix later ...

CVE-2026-33769 Astro: Remote allowlist bypass via unanchored matchPathname wildcard

Astro is a web framework. From version 2.10.10 to before version 5.18.1, this issue concerns Astro's remotePatterns path enforcement for remote URLs used by server-side fetchers such as the image optimization endpoint. The path matching logic for / wildcards is unanchored, so a pathname that...