@chocolatey-software/astro (>=2.0.0, <=2.5.0), choco-astro (>=0.3.1, <=0.4.0) potentially affected by CVE-2026-27729 via @astrojs/node (>=9.2.2, <=9.5.2)

@astrojs/node NPM version =9.2.2, =2.0.0, =0.3.1, =0.4.0 Source cves: CVE-2026-27729 Source advisory: MEND:CVE-2026-27729...

CVE-2026-27729 Astro has memory exhaustion DoS due to missing request body size limit in Server Actions

Astro is a web framework. In versions 9.0.0 through 9.5.3, Astro server actions have no default request body size limit, which can lead to memory exhaustion DoS. A single large POST to a valid action endpoint can crash the server process on memory-constrained deployments. On-demand rendered sites...

EUVD-2026-7455

Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect...

CVE-2026-25545

Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect...

CVE-2026-25545

Astro SSRF in error rendering via Host header (CVE-2026-25545). Affected: Astro until version 9.5.4 and @astrojs/node before 9.5.4. Vulnerability arises when SSR error pages (e.g., 404/500) prerendered content fetches a URL constructed from the Host header, enabling an attacker to redirect to int...

CVE-2026-25545 Astro has Full-Read SSRF in error rendering via Host: header injection

Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect...

CVE-2026-25545 Astro has Full-Read SSRF in error rendering via Host: header injection

Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect...

CVE-2026-25545 Astro has Full-Read SSRF in error rendering via Host: header injection

Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect...

Astro security vulnerabilities

Astro is a content-driven website framework developed by Astro OpenSource. Versions 9.0.0 to 9.5.3 of Astro have security vulnerabilities. These vulnerabilities stem from the lack of a default request body size limit on Astro servers, which can lead to memory exhaustion and denial-of-service...

CVE-2026-27729: Allocation of Resources Without Limits or Throttling

Astro is a web framework. In versions 9.0.0 through 9.5.3, Astro server actions have no default request body size limit, which can lead to memory exhaustion DoS. A single large POST to a valid action endpoint can crash the server process on memory-constrained deployments. On-demand rendered sites...

CVE-2026-25545: Server-Side Request Forgery (SSRF)

Astro is a web framework. Prior to version 9.5.4, Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect...

Astro code issues and vulnerabilities

Astro is a content-driven website framework developed by Astro OpenSource. Versions of Astro prior to 9.5.4 had code vulnerabilities. These vulnerabilities stemmed from server-side rendering of pages, where errors were handled through server-side request forgeing, potentially allowing attackers t...

@chocolatey-software/astro (>=2.0.0, <=2.5.0), choco-astro (>=0.3.1, <=0.4.0) potentially affected by CVE-2026-25545 via @astrojs/node (>=9.2.2, <=9.5.2)

@astrojs/node NPM version =9.2.2, =2.0.0, =0.3.1, =0.4.0 Source cves: CVE-2026-25545 Source advisory: GHSA-QQ67-MVV5-FW3G...

@chocolatey-software/astro (>=2.0.0, <=2.5.0), choco-astro (>=0.3.1, <=0.4.0) potentially affected by CVE-2026-25545 via @astrojs/node (>=9.2.2, <=9.5.2)

@astrojs/node NPM version =9.2.2, =2.0.0, =0.3.1, =0.4.0 Source cves: CVE-2026-25545 Source advisory: OSV:GHSA-QQ67-MVV5-FW3G...

@1771technologies/oneplay (>=0.0.1, <=0.0.6), @antonyfaris/prefix-node-builtins (>=1.0.0, <=1.0.1) +39 more potentially affected by CVE-2026-25545 via astro (>=5.0.0-beta.5, <=5.17.2)

astro NPM version =5.0.0-beta.5, =0.0.1, =1.0.0, =0.5.0, =0.0.1, =0.1.0, =0.0.1, =2.0.0, =2.18.7, =1.25.426-4, =0.6.2, =0.1.2-alpha.1, =0.0.28, =0.0.28, =0.0.40 and more Source cves: CVE-2026-25545 Source advisory: SNYK:JS-ASTRO-15338137...

Server-side Request Forgery (SSRF)

Overview astro is an Astro is a modern site builder with web best practices, performance, and DX front-of-mind. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in renderError, when custom prerendered error pages like 404.astro or 500.astro are in use. The...

GHSA-QQ67-MVV5-FW3G Astro has Full-Read SSRF in error rendering via Host: header injection

Summary Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect this to any internal URL to read the respon...

stnd (0.18.70) potentially affected by CVE-2026-25545 via astro (6.0.0-beta.1)

astro NPM version 6.0.0-beta.1 is affected by a known vulnerability. The following packages have a transitive dependency on astro and may be impacted: - stnd 0.18.70 Source cves: CVE-2026-25545 Source advisory: SNYK:JS-ASTRO-15338137...

Astro has Full-Read SSRF in error rendering via Host: header injection

Summary Server-Side Rendered pages that return an error with a prerendered custom error page eg. 404.astro or 500.astro are vulnerable to SSRF. If the Host: header is changed to an attacker's server, it will be fetched on /500.html and they can redirect this to any internal URL to read the respon...

PT-2026-21546

Name of the Vulnerable Software and Affected Versions Astro versions prior to 9.5.4 Description Astro, a web framework, is affected by a Server-Side Request Forgery SSRF issue in versions prior to 9.5.4. Server-Side Rendered pages returning an error with a prerendered custom error page such as...