Security Advisory

CVE-2026-29045

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-04 22:09:22

Last updated 2026-03-05 15:42:05

Assigner GitHub_M

State PUBLISHED

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, when using serveStatic together with route-based middleware protections (e.g. app.use(/admin/*, ...)), inconsistent URL decoding allowed protected static resources to be accessed without authorization. The router used decodeURI, while serveStatic used decodeURIComponent. This mismatch allowed paths containing encoded slashes (%2F) to bypass middleware protections while still resolving to the intended filesystem path. This issue has been patched in version 4.12.4.

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