CVE-2025-55207— @astrojs/node's trailing slash handling causes open redirect issue
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I. Basic Information for CVE-2025-55207
Vulnerability Information
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Vulnerability Title
@astrojs/node's trailing slash handling causes open redirect issue
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Astro 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Astro是Astro开源的一个内容驱动网站的 web 框架。 Astro 9.4.1之前版本存在输入验证错误漏洞，该漏洞源于重定向功能存在缺陷，可能导致开放重定向攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-55207
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IV. Related Vulnerabilities
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Astro: Remote allowlist bypass via unanchored matchPathname - CVE-2026-33768
Astro: Unauthenticated Path Override via `x-astro-path` / `x
Same vendor: withastro
- CVE-2026-41322
@astrojs/node: Cache Poisoning due to incorrect error handli - CVE-2026-41321
@astrojs/cloudflare: SSRF via redirect following in Cloudfla - CVE-2026-41067
Astro: XSS via incomplete `</script>` sanitization in `defin - CVE-2026-33769
Astro: Remote allowlist bypass via unanchored matchPathname - CVE-2026-33768
Astro: Unauthenticated Path Override via `x-astro-path` / `x
Same weakness: CWE-601
- CVE-2026-42350
Kargo: Open Redirect in UI OIDC Login Flow via redirectTo Qu - CVE-2026-42195
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Open Redirect in DivvyDrive Information Technologies' DivvyD
V. Comments for CVE-2025-55207
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