@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect
Impact
With trailingSlash: 'always' configured, the @astrojs/node standalone server's static file handler appends a trailing slash to request paths and issues a 301 redirect. Paths beginning with /\ (slash-backslash) were not recognized as internal paths, so the handler would echo the raw path back in the Location header. Because browsers treat \ as / per the WHATWG URL specification, the resulting redirect could resolve to an external host.
Preconditions:
trailingSlash: 'always'must be set (non-default; the default is'ignore')- The request path must not have a file extension in its final segment
- An attacker must deliver the crafted link to a user
Patches
Fixed by treating backslash-prefixed paths the same as //-prefixed paths in isInternalPath(), so they are no longer rewritten with a trailing slash.
Workarounds
Use the default trailingSlash: 'ignore' setting, which does not issue trailing-slash redirects in the static file handler.
References
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | @astrojs/node | >= 8.1.0, < 11.0.2 | 11.0.2 |
Referencias
- https://github.com/withastro/astro/security/advisories/GHSA-r557-wffq-wvrc
- https://nvd.nist.gov/vuln/detail/CVE-2026-59730
- https://github.com/withastro/astro/pull/17252
- https://github.com/withastro/astro/commit/eb6f97e391ee587747e37609c255c7cd4b9cce3c
- https://github.com/withastro/astro
- https://github.com/withastro/astro/releases/tag/@astrojs/node@11.0.2
- Vector CVSS
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N- Debilidad (CWE)
CWE-601- Plataforma
- npm
- Paquete
@astrojs/node- Publicada
- 20.07.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-r557-wffq-wvrc - CC BY 4.0
Historial de vulnerabilidades: @astrojs/node
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 9
- Primera → última
- 08.2025 09.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 1
- Media 7
- Baja 1
Divulgaciones por año
- 2025: 2
- 2026: 7
-
@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect esta entrada
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