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fix: [security] Bad redirect check

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Nimer@Tornado 2026-07-05 05:41:00 +03:00 committed by Mohamad Nimer
parent 3015d947ac
commit bb6335b24a
1 changed files with 3 additions and 6 deletions
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9
path.go
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@ -25,12 +25,9 @@ func cleanPath(p string) string {
if p == "" {
return "/"
}
// Prevent scheme-relative ("//...") or backslash-based absolute ("/\\...") paths.
for len(p) > 1 && p[0] == '/' && p[1] == '/' {
p = p[1:]
}
if len(p) > 1 && p[0] == '/' && p[1] == '\\' {
p = "/" + p[2:]
// Prevent scheme-relative or backslash-based absolute redirects.
if len(p) > 1 && p[0] == '/' && (p[1] == '/' || p[1] == '\\') {
return "/"
}
// Reasonably sized buffer on stack to avoid allocations in the common case.