npm/@astrojs/node: @astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect
摘要
Severity: LOW | CVE: CVE-2026-59730 | Package: npm/@astrojs/node | Affected: >= 8.1.0, < 11.0.2 | Patched: 11.0.2
正文
### 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 - [WHATWG URL spec: backslash normalization](https://url.spec.whatwg.org/#url-parsing)
标签
- ecosystem:npm
- severity:low
- type:reviewed
扩展字段
{
"credits": [
{
"login": "alanturing881",
"type": "reporter"
}
],
"cve_id": "CVE-2026-59730",
"cwe_ids": [
"CWE-601"
],
"cwe_names": [
"URL Redirection to Untrusted Site ('Open Redirect')"
],
"ghsa_id": "GHSA-r557-wffq-wvrc",
"package": {
"ecosystem": "npm",
"name": "@astrojs/node",
"patched_version": "11.0.2",
"vulnerable_range": ">= 8.1.0, < 11.0.2"
},
"references": [
"https://github.com/withastro/astro/security/advisories/GHSA-r557-wffq-wvrc",
"https://github.com/withastro/astro/pull/17252",
"https://github.com/withastro/astro/commit/eb6f97e391ee587747e37609c255c7cd4b9cce3c",
"https://github.com/withastro/astro/releases/tag/@astrojs/[email protected]",
"https://github.com/advisories/GHSA-r557-wffq-wvrc"
],
"source_code_location": "https://github.com/withastro/astro",
"updated_at": "2026-07-20T23:22:22Z"
}