CVE-2026-47676
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
Hono to framework aplikacji webowych wspierający dowolne środowisko JavaScript. W wersjach przed 4.12.21, metoda app.mount() usuwała prefiks montowania z przychodzącej ścieżki żądania w sposób nieprawidłowy, co prowadziło do błędnego przekazywania ścieżki do podaplikacji w przypadku użycia wielobajtowych znaków zakodowanych procentowo.
Risk Assessment
Ta podatność może prowadzić do nieprawidłowego działania aplikacji, co może wpłynąć na jej funkcjonalność i bezpieczeństwo. Niewłaściwe przekazywanie ścieżek może umożliwić atakującym manipulację danymi w aplikacji.
Recommendation
Zaleca się aktualizację frameworka Hono do wersji 4.12.21 lub nowszej, aby usunąć tę podatność i zapewnić prawidłowe działanie aplikacji.
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Original NVD description (English source)
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, app.mount() strips the mount prefix from the incoming request path using the raw URL pathname, while route matching is performed against the percent-decoded path. This inconsistency causes the prefix to be stripped at the wrong position when the path contains percent-encoded multi-byte characters, resulting in the mounted sub-application receiving an incorrect path. This vulnerability is fixed in 4.12.21.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

