@astrojs/node’s trailing slash handling causes open redirect issue_CVE-2025-55207

5.5 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P

Description

Astro is a web framework for content-driven websites. Following CVE-2025-54793 there's still an Open Redirect vulnerability in a subset of Astro deployment scenarios prior to version 9.4.1. Astro 5.12.8 addressed CVE-2025-54793 where https://example.com//astro.build/press would redirect to the external origin //astro.build/press. However, with the Node deployment adapter in standalone mode and trailingSlash set to "always" in the Astro configuration, https://example.com//astro.build/press still redirects to //astro.build/press. This affects any user who clicks on a specially crafted link pointing to the affected domain. Since the domain appears legitimate, victims may be tricked into trusting the redirected page, leading to possible credential theft, malware distribution, or other phishing-related attacks. This issue has been patched in version 9.4.1.

Basic Information

ID CVE-2025-55207

Source GitHub_M

Published Aug 15, 2025 at 15:13

Affected Product

Vendor withastro

Product astro

Version < 9.4.1

Affected Versions withastro astro < 9.4.1

CWE Classification

CWE-601

References

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    "published": "2025-08-15T15:13:08.214Z",
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